The volume occupied at 25 °C. Remember to convert between °C and K. V2 = 3.311 L is the correct answer.
What is volume?
Volume is a measure of the amount of space occupied by an object, or the amount of matter contained within it. It is measured in units such as cubic metres, cubic centimetres, litres, millilitres, etc. Volume is a three-dimensional concept, meaning that it requires three measurements to be taken in order to accurately measure the amount of space an object occupies. The volume of a solid object can be determined by applying the formula V = l x w x h, where l is the length, w is the width, and h is the height of the object. For a liquid or gas, the volume is calculated by measuring its mass and the density of the substance. Volume can also be used to describe the total amount of space something occupies, such as the volume of a room or the volume of a storage container.
Temperature and Volume equation
Given,
The volume at -12°C = 2.90L
Temperature, T1 = -12°C
= (-12°C + 273)
= 261K
And, Volume at 25°C = ?
(25°C + 273)K
= 298K
Now, by using this equation:-
V1/T1 = V2/T2
V2 = V1 x T2/T1
V2 = 2.90L x 298K/261K
V2 = 3.311L
Hence, The volume at 25°C will be 3.311L
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AssertionDuring covalent bonding the electronegativity difference of two atoms is less than $$1.7$$ReasonCovalent bond is formed by sharing of electrons between atoms that have same sizeABoth Assertion and Reason are correct and Reason is the correct explanation for AssertionBBoth Assertion and Reason are correct but Reason is not the correct explanation for AssertionCAssertion is correct but Reason is incorrectDBoth Assertion and Reason are incorrect
C
A covalent bond occurs when atoms share one or more pairs of electrons to form a stable molecule. The difference in electronegativity between two atoms plays a role in determining the type of bond formed between them. In general, covalent bonds are formed between atoms with similar electronegativities.
A covalent bond can form between two atoms if the electronegativity difference between them is less than 1.7. However, the size of the atoms is not the determining factor in covalent bond formation. Instead, the atomic electron distribution and electron affinity are very important.
In general, covalent bonding is a key process in chemistry that allows atoms to form stable bonds with each other. It is a key factor in determining the properties of various chemical compounds such as gases, liquids and solids.
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Match each property of a liquid to what it indicates about the relative strength of the intermolecular forces in that liquid. Strong intermolecular forces Weak intermolecular forces Answer Bank high boiling point high vapor pressure high viscosity high surface tension
Powerful molecular forces Intermolecular forces that are weak Answer bank High surface tension, high viscosity, high vapor pressure, and high boiling point.
A liquid's resistance to flowing is determined by its viscosity. Viscosity is a measure of how strongly intermolecular forces are present in a liquid. All four parameters—boiling point, melting temperature, surface tension, and viscosity—decline significantly. The substance's vapor pressure rises as a result of the molecules' easy escape due to weak forces. In a closed container, vapor pressure develops when liquid molecules have enough kinetic energy to break free from the intermolecular interactions and transform into a gas. The magnitude of intermolecular forces has an inverse relationship with vapor pressure.
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You are working as a research assistant and the four bottles of the solutions needed for the experiment have no labels. The solutions are glucose, hexane, potassium iodide (KI) and ethanol. Using your understanding of physical and chemical properties, chemical reactions and macromolecules composition, design an experiment to determine the identity of the solution found in each bottle.
A chemical substance, pharmaceutical, and dietary supplement all refer to potassium iodide. A metal halide made of potassium and iodide with expectorant and thyroid-protecting effects is known as potassium iodide.
The potassium cation (K+) and the iodide anion form an ionic connection in the metal-halide salt known as potassium iodide (I–). It appears as cubical crystals, powder, or white granules and ranges in colour from colourless to white. It tastes quite salty and unpleasant. Iodine and potassium hydroxide are mixed to create this chemical.
Compounds contain elements in predetermined ratios.
Each compound has a certain set of characteristics.
Only chemical breakdown can separate compounds.
Compound particles only come in one type.
They are all the same, or homogenous.
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There are several variations of the Aldol reaction. Which of the following types ofreactants leads to only one possible product with the Aldol condensation reaction?A) Two different aldehydes with alfa-hydrogens are able to form a single aldolcondensation product.B) Two different ketones with alfa-hydrogens are able to form a single aldolcondensation product.C) Any aldehyde and ketone mixed together can react to form a single condensationproduct.D) Any pair of aldehyde or ketone reactants where one of the reactants has no alfa-hydrogens will lead to a single aldol product.
Option D; Any pair of aldehyde or ketone reactants where one of the reactants has no alfa-hydrogens will lead to a single aldol product.
Aldehydes are carbonyl compounds that are produced both naturally and artificially and are present everywhere in the environment. Aldehydes are reactive species, therefore naturally, they are hazardous to the body. Any member of the family of organic compounds known as an aldehyde contains a carbon atom that also shares a single bond with a hydrogen atom, a double bond with an oxygen atom, and a double bond with another atom or group of atoms (designated R in general chemical formulas and structure diagrams). All aldehydes have what is known as the carbonyl group, a double bond between carbon and oxygen. Many aldehydes have pleasant aromas, and in theory, they are created by dehydrogenating (removing hydrogen) alcohols, which is how the word "aldehyde" originated.
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The table compares some characteristics of two atoms.
Charged Particles
Atom Number of Neutrons Mass Number
X 4 7
Y 5 9
Use the table to determine the number of protons for each atom. Then, choose the statement below that is true about the two atoms.
Atoms X and Atom Y are in the same family.
Atom X is in a column to the right of Atom Y on the periodic table.
Atom X and Atom Y are in the same row on the periodic table.
Atoms X and Atom Y are isotopes.
The statement that is true about the elements;
Atom X and Atom Y are in the same row on the periodic table. Option C
What is the periodic table?We know that the periodic table has to do with an arrangement of the elements in an order that is systematic. As such, when we look at the periodic table, we are looking at a systematization of the elements in a way that it is quite easy for us to be able to identify the elements.
Now we know that the mass number is the sum of the atomic number which in turn is the proton number and the number of the neutrons in the atom.
We know that the atomic number is what would tell us the group to which the element has been found to belong and in this case we can see that element X is just right to element Y in the periodic table.
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Identify each statement as True or False. a) The value of K_w applies to any aqueous solution, not just pure water b) Ions that appear on both sides of an equation but undergo no change in a reaction are called spectator ions. c) An aqueous solution containing an equal number of moles of NaF and HF in an aqueous solution is an example of a buffer solution. d) A solution containing a low concentration HCl is a weak acid.
Identify each statement as True or False a) True b) True c) True d) False Not just pure water, but all aqueous solutions are subject to the equilibrium constant Kw.
In pure water, the concentrations of the hydronium and hydroxide ions are identical, making the solution neutral. Based on how much they ionise in water, acids and bases are categorised as strong or weak. - Salt and water are typically produced when acids and bases react. When the amount of hydrogen ions and hydroxide ions are equilibrium in moles, neutralisation takes place. The weak acid neutralises the base when it is introduced to the mixture.
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overall, the physical properties of minerals provide a reliable means to identify common minerals. however, certain properties can exhibit a range of characteristics or values making them less useful for identification purposes. choose three physical properties that might vary considerably between samples of the same mineral and explain why such variability would exist.
First we understand about main physical properties of minerals which helps in identification of common minerals.
Habit: Used to classify minerals into categories such as Cubic, Rectangular, Bladed, Prismatic, Longer, etc. depending on their shape.
Hardness: The hardness is used to identify a type of mineral based on their hardness on the Moh's scale of hardness (ranges from 0-10). In order to do this, an unknown type of mineral is scratched with a substance or mineral with a known hardness level and then referenced with the Moh's scale of hardness in order to identify the mineral.
Tenacity: Tenacity is used to identify minerals by measuring how resistant they are to being bent, crushed, or broken.
Density: The density of a mineral is determined by comparing the mass of the mineral to the volume of the mineral.
Color: The color that the particular mineral displays is used to identify it.
Luster: This a reflection property of a mineral towards light incident on it's surface as after reflection how it appears by reflection of light
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Suppose the galvanic cell sketched below is powered by the following reaction: Mg(s)+ SnSO 4(aq) → MgSO4(aq)+ Sn(s) er E1 E2 S1 S2 Write a balanced equation for the half-reaction Write a balanced equation for the half-reaction that happens at the anode of this cell Of what substance is E1 made? Of what substance is E2 made? What are the chemical species in solution S1? What are the chemical species in solution S2?
The balanced chemical equation is, Mg(s)+ SnSO4 (aq.) → MgSO4(aq.)+ Sn(s) .
The half cell reactions are, Sn2+(aq.) + 2e- -----> Sn(s) and Mg(s) ----> Mg2+(aq.) + 2e-
A Half cell reaction is expressed either as an oxidation reaction in which electrons are lost or a reduction reaction where electronic are gained. The reactions occur in an electrochemical cell in which the electrons are lost at the anode through oxidation and consumed at the cathode where the reduction occurs. Half-cell reactions are useful in galvanic and voltaic cells in which the electrons flow from the anode to the cathode through an electrolyte to produce an electromotive force (EMF).
Half cell Reaction at cathode : Reduction
Sn2+(aq.) + 2e- -----> Sn(s)
Half- cell reaction at anode : Oxidation
Mg(s) ----> Mg2+(aq.) + 2e-
E1 is made of Mg
E2 is made of Sn
Chemical species in solution S1 are Mg2+ and SO42- .
Chemical species in solution S2 are Sn2+ and SO42-
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choices for blanks: precipitation, acid-base, redox. choices may be repeated, or not, in the different blanks) the reaction between caesium metal and chlorine gas is a(n) reaction. on the other hand, the reaction between ammonia and vinegar is a(n) reaction and the one between sodium iodide and lead(ii) perchlorate is a(n) reaction
In this question we are asked to fill up the blank in the following statement:
The reaction between cesium metal and chlorine gas is a ___ reaction. on the other hand, the reaction between ammonia and vinegar is a____ reaction and the one between sodium iodide and lead(ii) perchlorate is a ____ reaction.
For first blank, answer will be Redox reaction. As for reaction between cesium metal and chlorine gas, chlorine undergoes reduction and cesium undergoes oxidation.For second blank, answer will be Acid-Base reaction, As for the reaction between ammonia and vinegar where ammonia is a bas and vinegar is acetic acid that undergoes acid base reaction.For third blank, answer will be Precipitation reaction.So, the statement becomes:
The reaction between cesium metal and chlorine gas is a Redox reaction reaction.
On the other hand, the reaction between ammonia and vinegar is a Acid Base Reaction, and
The one between sodium iodide and lead(ii) perchlorate is a Precipitation Reaction..
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Which of the following phase changes involves the transfer of heat from the surroundings to the system?
A
CH4(g)→CH4(l)CH4(g)→CH4(l), because CH4CH4 molecules in the gas phase must absorb energy in order to move closer together, thereby increasing the intermolecular attractions in the solid state.
B
CO2(g)→CO2(s)CO2(g)→CO2(s), because CO2CO2 molecules in the gas phase must absorb energy in order to move closer together, thereby increasing the intermolecular attractions in the liquid state.
C
H2O(l)→H2O(s)H2O(l)→H2O(s), because H2OH2O molecules in the liquid phase must absorb energy in order to create a crystalline structure with strong intermolecular attractions in the solid state.
D
NH3(l)→NH3(g)NH3(l)→NH3(g), because NH3NH3 molecules in the liquid phase must absorb energy in order to overcome their intermolecular attractions and become free gas molecules.
Because NH3 molecules in the liquid phase require energy to overcome their intermolecular interactions and transform into free gas molecules, this expression reads NH3(l)— NH3(g). Heat is transferred from the environment to the system during phase shifts.
Ammonia has the chemical formula NH3 and is a colourless gas.Nitrogen and hydrogen make up its composition. Its name in aqueous form is ammonium hydroxide. This inorganic substance smells strongly. It is hazardous and corrosive in its concentrated form. Ammonia has a density of 0.769 kg/m3 at STP, making it lighter than air. It is frequently employed as fertiliser. Additionally, it is employed in the production of explosives like TNT and nitrocelluloseAdditionally, it is employed in the manufacture of soda ash and the Ostwald process to produce nitric acid. A strong alkali, such as sodium hydroxide or calcium hydroxide 2NH4Cl + Ca(OH)2 → CaCl2 + 2H2O + 2NH3(g) is heated with an ammonium salt, such as ammonium chloride NH4Cl, to produce ammonia (g)
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Buffers which lack biological activity and are unlikely to interfere with ANY biochemical reactions include:
Buffers which lack biological activity and are unlikely to interfere with any biochemical reactions include Both Tris and HEPES.
A buffer is a substance that can withstand a pH shift when acidic or basic substances are added. Small additions of acid or base can be neutralized by it, keeping the pH of the solution largely constant.
One of the greatest all-purpose buffers for biological research has been referred to as HEPES. The molecule is zwitterionic at biological pH and functions as a buffer best between pH 6.8 and pH 8.2. Tissue culturing is only one of the many uses for which HEPES has been utilized.
The term "tris" refers to the chemical tris-hydroxymethyl aminomethane, whose formula is (HOCH2)3CNH2. Tris is frequently used in biochemistry, particularly for nucleic acid solutions, as a component of buffer solutions, such as in TAE and TBE buffer.
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The complete question should be:
Buffers which lack biological activity and are unlikely to interfere with ANY biochemical reactions include:
Tris.
Hepes.
Phosphate.
Both Tris and HEPES.
Which of the following compounds has a number of electron rich regions that is different from the other compounds? BCI 03 NH3 NO3
NH3 i.e. ammonia compounds has a number of electron rich regions that is different from the other compounds.
Hydrides that are electron-rich have more electrons than are required for bonding. The majority of the additional electrons are found on the central atom's single pair of electrons. These kinds of compounds are typically produced by the combination of groups of 15, 16, and 17 elements. Think about NH3, PH3, etc. specific electron. Electron-specific hydrogen molecules have enough valence electrons to form covalent bonds. Those hydrides that possess precisely the proper number of electrons for a covalent connection are known as electron precise hydrides. These kinds of compounds are typically made with group 14 components. The compounds typically have a tetrahedral shape. CH4, SiH4, as an example, etc. Electron-deficient compounds are those that don't have enough electrons to completely fill the octet of the central atom. For each pair of bonded atoms to form a conventional electron-pair bond, these compounds are deficient in electrons. Electron-deficient compounds can be found in polymorphic forms to make up for their lack of electrons. Compounds with less than 8 electrons in their valence shells, such as B2H6, AlH3, etc., are considered to be electron-deficient.
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If chemical signals in the cytoplasm control the progression of a cell to the M phase of the cell cycle, then fusion of a cell in G1 with a cell in early M phase would most likely result in the ___condensation of chromatin in preparation of nuclear division in both cells.
If chemical signals in the cytoplasm control the progression of a cell to the M phase of the cell cycle, then fusion of a cell in G1 with a cell in early M phase would most likely result in the condensation of chromatin in preparation of nuclear division in both cells.
The cytoplasm is the dispersed phase fluid that surrounds the inside of the cell. It acts as a catalyst for biochemical processes. It serves as a foundation on such what other organs can function inside the cell. Every one of the features for cellular growth, economic expansion and reproduction are decided to carry out in the cytoplasm of a cell. Chromatin is a DNA and protein mixture that forms the chromatids unearthed in the mitochondria of humans as well as other higher organisms. Many proteins, particularly histones, package the huge quantity of DNA in a genetic code into a highly condensed package that can fit inside the cell nucleus.
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If you are going to bake potatoes, and your potatoes are soft and dehydrated, they can be soaked in more firm before baking. Review to make them an isotonic solution a hypotonic solution such as tap water a hypertonic solution made with distilled water and a tablespoon of salt a hypertonic solution such as distilled wate
If you are going to bake potatoes, and your potatoes are soft and dehydrated, they can be soaked in hypotonic solution in a more firm before baking.
Before baking potatoes that are soft and dehydrated, it is important to give them a good soaking to make them firmer.
For this, a hypotonic solution such as salt water is preferred. Start by filling a large bowl with cold water and adding some salt. The salt will help to draw out moisture from the potatoes, making them firmer and more suitable for baking. Submerge the potatoes in the water and let them soak for at least 30 minutes.
Drain the water and pat the potatoes dry with a paper towel. This will remove any excess moisture and help them to crisp up when baking. You can then season the potatoes as desired and bake them as normal. The soaking process helps to rehydrate the potatoes, making them firmer and more suitable for baking.
The salt also helps to draw out moisture, so that when the potatoes are baked, they will be crisp on the outside and fluffy on the inside. The soaking process is an important step in preparing potatoes for baking, as it helps to make them firmer and more suitable for baking.
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Using the glaucoma winged gull or the bald eagle as an example explain how the diet of each is affected by other disappearance.
Since the majority of the prey consumed by Bald Eagles in this ecosystem comes from nearby marine communities, we predicted that the recent decline in otter populations would have a negative indirect impact on Bald Eagle diets and demography.
What is diet?In nutrition, diet is the sum of food consumed by a person or other organism. Despite what we had anticipated, we found no changes in the density of breeding pairs on four islands between 1993-1994 and 2000-2002.
Bald eagles can find fish, their main source of food, nearby rivers, lakes, and marshes where they live. However, as their numbers increase, bald eagles are extending their range and even building nests in cities. Waterfowl, turtles, rabbits, snakes, other small animals, and carrion are among the other things that bald eagles eat.
Bald Eagle diets, however, underwent significant changes between the two time periods, likely as a result of changes in prey availability brought on by the rise and subsequent decline in sea otter populations.
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The primary distinction between chemical reactions and nuclear reactions is that chemical reactions involve the flow of electrons and
nuclear reactions involve changes to protons and neutrons.
False
True
Answer: True. The primary distinction between chemical reactions and nuclear reactions is that chemical reactions involve the flow of electrons, while nuclear reactions involve changes to protons and neutrons. In chemical reactions, atoms form new bonds with other atoms by gaining, losing, or sharing electrons. In nuclear reactions, the protons and neutrons in the nucleus of an atom are rearranged to form new elements. These two types of reactions are fundamentally different and involve different types of particles and energy.
Explanation:
A photon of light hits the
electron in the image. What-
happens to the electron,
assuming there is enough
energy?
Answer:
When a photon of light hits an electron, the photon transfers some of its energy to the electron. If the photon has enough energy, it can excite the electron, which means that it can raise the electron to a higher energy state. In other words, the photon's energy can be absorbed by the electron, causing the electron to move to a higher energy level within an atom or molecule.
Answer:
Explanation:
As we know that in the photoelectric effect, a low-energy gamma photon that collides with an atom can tranfer all its energy to an inner orbital electron and cause the ejection of the ELECTRON FROM THE ATOM
The amount of energy required to eject the electrons depends upon on the atomic number.
why should a magnesium ribbon be cleaned before burning in air?
write short note about acid nomenclature
Acids
There are various definitions for an acid. The simplest description of an acid is a chemical molecule with one or more hydrogen atoms that, when dissolved in water, gives forth hydronium ions (H3O+).
Because acids are molecular, they do not assume the expanded three-dimensional structures of ionic substances like NaCl and remain single molecules in their pure form. However, when these molecules are dissolved in water, a positively charged anion and a hydronium ion are produced as a result of the chemical connection between the hydrogen atom and the remainder of the molecule breaking. An equation involving chemicals can represent this:
HCl+H2O→H3O++Cl−
In an inorganic acid's formula, the H of the acid is written first. After the acid dissolves, the anion is all that is left of the acid (apart from the H). Although a significant class of chemicals, organic acids are not covered in this article.
Acid Names
Since all acids contain hydrogen, an acid's name is determined by the anion that it is associated with. These anions come in monatomic and polyatomic forms.
Binary acid names (in aqueous form)
An acid that contains hydrogen and another element is referred to as a binary acid. The majority of binary acids have a halogen in them. The prefix hydro- is used to start an acid name, which is then followed by the base name of the anion and the suffix -ic.
Oxyacids name
An oxyacid is an acid made up of three elements: hydrogen, oxygen, and another one. Typically, the third element is a nonmetal.
a) Oxyanions with the -ite end.
The anion's root is followed by the suffix -ous to form the name of the acid. No prefix is present.
b)Oxyanions that end in -ate.
The anion's root and the suffix -ic are used to identify the acid. No prefix is present.
In conclusion
Acids are molecular substances that discharge hydrogen ions.
The two elements hydrogen and the other make up a binary acid.
Hydrogen, oxygen, and another element are all present in oxyacids.
The anion that is bound to the hydrogen provides the basis for the acid's name.
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which of the pairs of compounds below is most likely to form a solution when mixed? view available hint(s)for part a which of the pairs of compounds below is most likely to form a solution when mixed? heptane (c7h16) and acetonitrile (h3ccn) water and ammonia (nh3) sodium chloride (nacl) and pentane (c5h12) ammonia (nh3) and isooctane (c8h18)
Answer:
water and ammonia (nh3)
Explanation:
NH3 + H2O => NH4OH
As a means of distinguishing one individual from another through DNA typing, genetics focus on ______, which are non-coding regions of the DNA.
Genetics focus on short tandem repeats in the DNA, that are non-coding regions.
DNA is a genetic material of human beings, plants and animals. It serves an of carrying information for survival, growth, development, immunity, digestion, metabolism and other significant processes. Besides, it is unique among each individual and hence can be utilised for identification.
DNA typing or fingerprinting is known by several other names. At a specific locus, there repeated units of nitrogenous bases. However, the number varies which can be detected to identify the family relationship, parentage, identity and transplantation.
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Calculate the molarity of each solution.
A) 38.2 g of KCl in 0.945 L of solution
Express your answer using three significant figures.
B) 64.3 g of C2H6O in 3.8 L of solution
Express your answer using two significant figures.
C) 36.2 mg of KI in 106 mL of solution
Express your answer using three significant figures.
study this chemical reaction: ca(s) zncl2(aq)zn(s)cacl2(aq) then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction
This chemical reaction: ca(s) zncl2(aq)zn(s)cacl2(aq) then, balanced half-reactions describing the oxidation and reduction that happen in this reaction is Ca (s) + ZnCl2 (aq) ---> Zn (s) + CaCl2 (aq).
When the substrate's oxidation states change, a chemical reaction known as redox (reduction-oxidation) takes place. Reduction occurs when electrons are obtained or the oxidation state drops; oxidation occurs when electrons are lost or the oxidation state increases. There are two types of redox reactions: During an electron transfer, only one electron (usually) travels from the reducing agent to the oxidant. This type of redox reaction is frequently discussed in terms of redox couples and electrode potentials. When one substrate gives way to another, an atom transfers. When iron rusts, for example, oxygen's oxidation state decreases as it receives electrons released by the iron, while the oxidation state of the iron atoms increases as the iron transforms into an oxide. Despite the fact that oxidation processes are typically related to the generation of oxides, other chemical species can carry out the same function. To weaken C=C (and other) bonds, hydrogen atoms are exchanged during hydrogenation.
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Suppose the galvanic cell sketched below is powered by the following reaction: Mg(s)+PdSO4(aq) MgSO4(aq)+Pd(s) e- E1 E2 sí S2 Write a balanced equation for the half-reaction that happens at the cathode of this cell. Write a balanced equation for the half-reaction that happens at the anode of this cell. Of what substance is El made?
The complete balanced half-cell reaction is as follows:
Mg(s)+PdSO4(aq)---->MgSO4(aq)+Pd(s)
S1 solution= MgSO4 (magnesium sulfate) and S2 solution= PdSO4 (Palladium (II) sulfate)
A chemical reaction that takes place between an oxidizing substance and a reducing substance. The oxidizing substance loses electrons in the reaction, and the reducing substance gains electrons. Oxidation numbers, which are assigned to atoms in molecules by assuming that all bonds to the atoms are ionic. An increase in oxidation number during a reaction corresponds to oxidation, while a decreases corresponds to reduction.
Cathode: Pd^2+(aq)+2e- ---> Pd(s)
At cathode, reduction (gain of e- ) occurs.
At anode: Mg(s) ----> Mg^2+(aq)+2e-
Anode, oxidation (loss of e-) occurs
E1= Mg; (as left side of cell is anode)
E2= Pd; (as right side of cell is cathode)
S1 solution= MgSO4 (magnesium sulfate)
S2 solution= PdSO4 (Palladium (II) sulfate)
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Formula fo chemical compound? Copper(1) hypochlorite
The structure of the Copper(1) hypochlorite is ClCuO.
What is the chemical formula?We know that the chemical formula has to do with the way that we are able to show the compound or indeed any other chemical specie on paper. In this case we have the compound that has been shown as Copper(1) hypochlorite.
It should be known that in the IUPAC nomenclature, the name of the compound must be such that we can be able to write the structure of the compound from the name of the compound. This is applied in writing the structure of any compound.
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what is the difference between tertiary alcohol and tertiary compaund
Answer:
Explanation:
TERTIARY ALCOHOL:
The alcohols where the carbon to which the hydroxide group is linked is 3 ' C carbon, as it has 3 alkyl groups attached to it.
TERTIARY COMPOUND:
A carbon attached to 3 other carbons is tertiary compound.
A 59.4 g sample of polystyrene, which has a specific heat capacity of 1.880 J.g ·°C , is put into a calorimeter (see sketch at right) that contains 200.0 g of water. The temperature of the water starts off at 19.0 °C. When the temperature of the water stops changing it's 27.7 °C. The pressure remains constant at 1 atm. Calculate the initial temperature of the polystyrene sample. Be sure your answer is rounded to 2 significant digits.
The polystyrene sample weighs 57.3 grammes in total. We made the assumption in this case that the heat given off by the hot body is equal to the heat absorbed by the cold body temperature.
We made the assumption in this case that the heat given off by the hot body is equal to the heat absorbed by the cold body temperature.
where, = the polystyrene's specific heat
C = water's specific heat
T = polystyrene mass
M = 100.0 g of water mass
T1 is the system's end temperature, while I is the polystyrene's starting temperature.
F is the water's starting temperature.
The weight of the polystyrene is 59.6 g (mpmp).
Once you've entered all the values into the formula above, you'll obtain
Consequently, the polystyrene sample weighs 57.3 grammes.
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Do you think that solids can undergo convection? Explain.
Answer:
it's not possible for a solid material to transfer heat through convection.
Explanation:
This would require more movement within the material, than a solid is capable of.
This brings us to liquids and gases.
Based on your answers to your group report: Rank the relative viscosity and vapor pressure of the substances: methane (CH4), pentane, and polyethylene polyethylene lowest viscosity and higes Choose ] lowest viscosity and higest vapor pressure highest viscosity and highest vapor pressure lowest viscosity and lowest vapor pressure. highest viscosity and lowest vapor pressure intermediate viscosity and intermediate vapor pressure I Choose ]methane pentane
Rank the relative viscosity and vapor pressure of the substances Paraffin, hexadecane, octane, 2,2,4-trimethylpentane,methane.
In addition to being a fuel or fuel component for diesel and tractor engines, paraffin is frequently utilized as a fuel for jet engines and rockets. These are some typical applications for paraffin: Paraffin wax, a white or colorless soft solid that is used as a lubricant, in candles, crayons, electrical insulation, and petroleum jelly, is a complex mixture of hydrocarbons that is especially obtained from distillates of wood, coal, petroleum, or shale oil. It is primarily used in coating and sealing, candles, rubber compounding, pharmaceuticals, and cosmetics. Consuming excessive amounts of paraffin might result in intestinal blockage, which can bring on symptoms including nausea, vomiting, and constipation. An individual with a dye allergy could get tongue swelling if the paraffin contains that dye.
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place the steps for predicting the products of a rxn in order. question 2 options: balance the skeleton equation and add state symbols (when applicable) to create a complete balanced equation write all reactants in ion notation. bond all the ions, reactants and products, to produce a skeleton equation according to the pattern the reactants predict, move the ions only to the correct arrangement as products.
The products of a rxn in order:
1. Balance the skeleton equation and add state symbols (when applicable) to create a complete balanced equation
2. Write all reactants in ion notation.
3. Bond all the ions, reactants and products, to produce a skeleton equation
4. According to the pattern the reactants predict, move the ions only to the correct arrangement as products.
1. Balance the skeleton equation and add state symbols (when applicable) to create a complete balanced equation.
2. Write all reactants in ion notation.
3. Bond all the ions, reactants and products, to produce a skeleton equation.
4. According to the pattern the reactants predict, move the ions only to the correct arrangement as products.
For example, if the reactants are NH4+ and OH- and the predicted products are NH3 and H2O, the skeleton equation would be NH4+ + OH- --> NH3 + H2O.
The process of moving the ions to the correct positions would then be: NH4+ + OH- --> NH4OH --> NH3 + H2O.
5. Once the ions are in the correct positions, double check that the equation is balanced by counting the number of atoms on both sides of the equation (i.e. the number of nitrogen atoms must be the same on both sides, the number of hydrogen atoms must be the same on both sides, and the number of oxygen atoms must be the same on both sides).
6. Move the ions only to the correct arrangement as products: Move the ions to the correct positions to form the products of the reaction. Make sure that the number of atoms on each side of the equation are equal and the state.
7. If the equation is balanced, you have successfully predicted.
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