Hi, can someone please help me :)​

The mass of ammonia is in the container is 0.18744 g.

Calculation:

Given:

Volume ,V= 250 mL= 0.25 L

Pressure, P = 833 torr = 1.09605 atm

Temperature, T = 42.4°C

                        42.4 + 272.15 = 315.55 K

Let gas constant, R = 0.0821 atm.L/mol.K

We know,

M = 17.04 g/mol

Using the ideal gas law:

  n= [tex]\frac{PV}{RT}[/tex]

  n= [tex]\frac{1.09605 X 0.25}{0.0821 X 315.55}[/tex]

  n= 0.0106 ≅ 0.011

Mass of ammonia

m= n × M

m= 0.011 × 17.04

Mass of ammonia = 0.18744 g

What is ideal gas law?

An ideal gas is one in which there aren't any intermolecular attractive forces and all atom-to-atom or molecule-to-molecule collisions are entirely elastic. It can be imagined as a group of collision-free, completely hard spheres that are arranged in a collection. Any change in internal energy in such a gas results in a change in temperature since all of the internal energy is present in the form of kinetic energy.

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The pressure of the gas will increase because, at higher temperatures, the molecules of the gas will have a higher average speed, and consequently, the number of molecule-wall-collision increases. Options 2 and 3.

The behavior of gases is described by the kinetic theory of gases. It recognizes gases as being made of large microscopic molecules that are in constant random motion.

In the constant random motion state, the gas molecules collide with one another as well as the wall of the contains that harbors them. According to the theory, the average kinetic energy of the molecules of gases is proportional to the absolute temperature of the gas itself.

With increased temperature, the molecules of gases move faster, thus colliding with the walls of the container more, thereby increasing the pressure within the container.

In other words, an increase in the temperature of the Xe gas sample will result in more collisions of the molecules of the gas with the wall of the container and lead to increased pressure.

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Ionic compounds are typically formed when metal and nonmetal components combine. For instance, the nonmetal chlorine and the metal calcium (Ca) combine to form the ionic compound calcium chloride (Cl).

All compounds are made up of atoms from different elements that share or transfer electrons. In ionic compounds, electrons are transferred from one atom to another. In this type of complex, electrons actively travel between the atoms rather than being shared. When atoms give up or take electrons in this way, they transform into charged particles known as ions. An ionic complex is formed when ions are held together by ionic bonds.

In this molecule, there are two negative chloride ions for every positive calcium ion. Because of this, an ionic substance has a neutral charge.

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The heat required to warm 1.80 L of water from 30°C to 100°C is equal to 527184 J.

The specific heat capacity can be described as the quantity of heat needed to change the temperature of 1 unit of substance by one-degree Celcius.

Assume that m is the mass of the material and the change in temperature by loss or absorption of heat 'Q' can be represented as:

Q = mCΔT

Given, the initial temperature of the water =30 °C

The final temperature of water = 100 °C

The change in the temperature = 100 - 30 = 70 °C

The volume of water, V = 1.80 L = 1800 ml

The density of water, d = 1 g/ml

The  mass of water, m = d ×V = 1 × 1800 = 1800 g

Specific heat capacity, C(water) =  4.184 J/ g°C

The amount of heat absorbed by the water  to change its temperatures can be calculated as:

Q = 1800 g × (4.184 J/g°C) × 70 °C

Q = 527184 J

Therefore, the heat required to warm the water is 527184 J.

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The five examples of chemical equation are as follows;

hydrogen + oxygen ---> water.

iron + oxygen ---> rust.

potassium and chlorine gas ---> chloride.

lime + carbon dioxide ---> calcium carbonate (used to strengthen masonry)

water + carbon dioxide + light ---> glucose and oxygen (photosynthesis)

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Ionic compounds conduct electricity in an aqueous solution and molten state but do not conduct electricity in a solid state.

Ionic compounds can be defined as crystalline solids generated by closely packed ions with opposite charges. An Ionic compound can be described as generally formed when one metal reacts with a non-metal.

In ionic compounds, the ions in the compound are usually held together by ionic bonds. The ions are produced by gaining or losing electrons in order to attain the nearest noble gas configuration.

In a reaction, the metals commonly lose electrons to achieve their complete octet while non-metals gain electrons to get a full octet.

In the solid state, Ionic compounds do not conduct electricity because ions are at fixed positions and do not move.

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The median of the following set of data (39.8, 39.6, 39.2, 39.6 and 39.5) is 39.6.

Median is a number separating the higher half from the lower half of a data sample, population, or probability distribution.

The median of a finite list of numbers can be found by arranging all the observations from lowest value to highest value and picking the middle one (e.g., the median of {3, 3, 5, 9, 11} is 5.

The following set of data was given this question;

39.8, 39.6, 39.2, 39.6 and 39.5

We arrange these data as follows:

39.2, 39.5, 39.6, 39.6, 39.8

The middle number or median is 39.6

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The normal distance between the two successive base pairs within a DNA is 3.4 Angstroms or 0.34 nm.

DNA base pair. Under normal circumstances, the nitrogen-containing bases adenine (A) and thymine (T) pair together, and cytosine (C) and guanine (G) pair together. The binding of these base pairs forms the structure of DNA .

Hydrogen bonding is the chemical interaction that underlies the base-pairing rules described above. Appropriate geometrical correspondence of hydrogen bond donors and acceptors allows only the "right" pairs to form stably. DNA with high GC-content is more stable than DNA with low GC-content. But, contrary to popular belief, the hydrogen bonds do not stabilize the DNA significantly; stabilization is mainly due to stacking interactions.

A unit of length equal to one hundred-millionth of a centimeter, 10−10 meter, used mainly to express wavelengths and interatomic distances.

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The element fluorine has 9 electrons. The electron configuration for an atom of fluorine is 1s2 2s2 2p5.

Fluorine is one of the element of the periodic table. It have 9 as atomic number and 19 as mass number. The electronic configuration of fluorine is 1s2 2s2 2p5. It belongs to 17th group. It is most electronegative atom. Because it accept one electron to get stable electronic configuration.

It belongs to 2nd period and belongs to p-block.

In the quantum chemistry and atomic physics, the electron configuration is defined as the distribution of the electrons of an atom or molecule in molecular or atomic orbitals. Electrons first enter clock wise then anti clockwise.

Thus, we concluded that element fluorine has 9 electrons. The electron configuration for an atom of fluorine is 1s2 2s2 2p5.

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Electronegativity is the capacity of an atom in a molecule to draw shared electrons. The difference in the electronegativities of two atoms determines the type of bond that will result from their union.

The bonding between atoms in a solid is determined by the

1. magnitude of the electronegativities of the solid's atoms and 2. variations in these electronegativities.

As a result, the bond-type triangle shown in the image below can be used to identify which category a solid should fall under. For compounds with metallic bonds, ionic solids should be used, followed by network covalent solids for compounds with ionic bond, and molecular solids for compounds with covalent bonds.

Combinations of atoms whose electronegativities and electronegativity discrepancies place them in the lower left corner of the bond-type triangle seen in the above picture are predicted to form metallic solids. Covalent materials are located in the lower right corner of this triangle, while ionic compounds are located in the triangle's center, at the top.

Hence, electronegativity determines how two atoms bond.

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Comparisons between ionic and covalent bonds are:

Ionic bonds and covalent bonds are important to chemistry, because they form the basis of most molecules and compounds. Ionic bonds are attracted electrostatically between two oppositely charged ions, while covalent bonds are formed when two atoms share electrons.

Both types of bonds are important in forming the strong, stable molecules that make up all matter on Earth. Without these types of bonds, many of the substances we rely on every day would not exist.

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200 ppm is the hardness of this water in mequiv/l.

How is water hardness determined?

How can you determine the water hardness in ppm?

Why is CaCO3 used to measure water hardness?

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Being non-polar, oxygen. Its symmetry makes the molecule. The amount of force exerted on the electrons by the two oxygen atoms is the same.

The non-metallic chemical element oxygen is found in group 16 of the periodic table, also called the oxygen group (O). All living things require oxygen, a flavorless, odorless gas that has no colour or taste. By using it as a source of carbon and releasing the oxygen back into the environment, plants use the carbon dioxide that animals have absorbed and converted into.

Oxygen can react with almost every other element to form compounds in addition to reactions that remove elements from their combinations with one another. These processes are known as combustions, and they frequently produce heat and light as byproducts. The most important component is water.

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Answer:

B

Explanation:

There's a law (very important) in chemistry.

The conservation of mass law states:

The same amount of matter exists before and after the change—none is created or destroyed

The reactants are on the left side of the equation, or the things that get added together to make new products.

Due to this law, there must be the same amount of each atom on both the product, and reactant side.

Thus, your answer would be 'B' as there is the same amount of both types of atoms.

Answer:

B.) Gypsum

Explanation:

Density represents the mass of a substance for every 1 unit volume (g/mL). You have been given the mass but need to find the volume. The volume can be found using the water displacement method (subtracting the initial volume of the water from the final volume).

Initial Volume: 25.7 mL

Final Volume: 32.3 mL

Final Water Volume - Initial Water Volume = Volume of the Mineral

32.3 mL - 25.7 mL = Volume of the Mineral

6.6 mL = Volume of the Mineral

The density can be calculated by dividing the volume from the mass.

Mass: 15.32 g

Volume: 6.6 mL

Density = mass (g) / volume (mL)

Density = 15.32 g / 6.6 mL

Density = 2.32 g/mL

According to the reference given, the mineral with a denisty of 2.32 g/mL is gypsum.

Metal reactivity is influenced by their propensity to lose electrons. The valence electrons are simply eliminated as the atomic size grows, resulting in the formation of positive ions.

A valence electron is an electron in an atom's outer shell that can take part in the production of a chemical bond if the outer shell is not closed. This concept is used in both chemistry and physics. One valence electron from each atom in the link is contributed to form a shared pair in a single covalent bond. The electrons in an atom's outermost electron shell are known as valence electrons.

Metal reactivity is related to their capacity to oxidise, produce basic hydroxides, and combine with non-metals to produce ionic compounds. Nuclear charge, atomic radius, shielding effect, and sublevel arrangement are the four main variables that govern metal reactivity (of electrons).

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Question:
1. Which of the following atoms is the smallest ( N, P, As )?

2. Which has the highest ionization energy ( N, P, As )?

Answer:
1. Smallest atom will be N if I'm not mistaken.
2. Highest ionization energy will be N = 14, 5341

BaO is characterized by ionic bonding.

There are many types of chemical bonds that bond the molecules together. The most important types of bond are generally ionic and covalent bonds. In ionic bond, electrons transfer takes place whereas in the covalent bonding, sharing of electrons takes.

We need one electron donor and one electron acceptor in case of ionic bond but in case of the covalent bonds, atoms with same electronegativity share the electrons. Also, ionic bonds are formed between metal and a non- metal and covalent bonds are formed between two nonmetals.

In this question, we need to determine whether BaO is covalent or ionic. Here, in this case barium is metal and oxygen is non-metal. Ionic bonds generally occur between metallic elements and nonmetallic elements. Hence, there is a bond between metal and non-metal so the bond formed will be ionic.

Therefore, BaO has an ionic bond.

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Saline laxatives are a group of drugs that include magnesium hydroxide.It functions by making the feces retain water.The stool becomes softer and more easily passable as a result of increasing the frequency of bowel movements.

Magnesium hydroxide adverse effects include severe diarrhoea, nausea, and vomiting; failure to pass stool after using the drug as a laxative; gastrointestinal bleeding; or exacerbation of symptoms.

The symptoms of having too much stomach acid, such as heartburn, an upset stomach, or indigestion, are also treated with this medicine.It is an acid that reduces stomach acid in order to work.

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When an onion is chopped, certain substances called lachrymators are released, irritating the lacrimal glands and the nerves that surround the eyes.

Methionine and cystine, two members of the amino acid family, make up these molecules. (These amino acids are joined together to form proteins.)

These substances are released into the air when an onion is cut or diced. When this happens, a "enzyme" transforms the amino acids into chemicals that act as lachrymators. This type of sulfuric acid irritates the eyes' nearby nerves, causing tears to develop.

Hence, lachrymator causes tearing of eyes.

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Answer:

here is the diagram

Explanation:

The statement which best represents the Law of Conservation of Matter with regard to chemical reaction is reactants and products have the same number and type of atoms, but the atoms may be recombined.

According to the rule of conservation of mass, matter cannot be generated or destroyed during a reaction. This implies that the mass of each reactant and each product in a reaction will be equal. Although the mass may change forms during the reaction, neither matter creation nor destruction occurs.

In a closed system, matter is conserved, to put it another way. Nothing (gas, water, or other) may enter or leave a closed system. The system contains all of the products. The system cannot accept or reject matter. A closed system could be the entire earth or it could be a tightly enclosed test tube.

The terms "law of conservation of mass" and "law of conservation of matter" are frequently used interchangeably. The law may also go by the titles of the law of mass conservation or the conservation of matter.

Hence, reactants and products have the same number and type of atoms, but the atoms may be recombined- best represents the law of conservation of matter.

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Your question is incomplete please write the complete question over the internet.

Part 3: Electronegativity of elements: F - F >  N - O > P - O.

Part 4: Electronegativity of elements: Na - F > C - F > C - O > Na - O > Na - N.

The reasons for the Electronegativity of different elemnts are-

Thus,

Part 3: Electronegativity of elements: F - F >  N - O > P - O.

Part 4: Electronegativity of elements: Na - F > C - F > C - O > Na - O > Na - N.

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The balanced reaction is shown as ;[tex]2H_{2} O + 2OH^- + 2CoCl_{2} +Na_{2} O_{2} ---- > 2CoCl_{3} + 4Cl^- + 2Na^+[/tex]

We know that a redox reaction is a kind of reaction where one specie is oxidized while the other specie is reduced in the reaction. In this case, we are trying to see how to balance the reaction that is shown under basic conditions.

We know that under basic conditions, we would have to add the hydroxide ions and water so that we can be able to balance the reaction as shown. We would now have; [tex]2H_{2} O + 2OH^- + 2CoCl_{2} +Na_{2} O_{2} ---- > 2CoCl_{3} + 4Cl^- + 2Na^+[/tex]. Thus the reaction is balanced under basic conditions.

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Answer:

Total Pressure: 2,160 mm Hg

Red Gas Pressure: 1,080 mm Hg

Yellow Gas Pressure: 360 mm Hg

Explanation:

The naturalization process is the process by which a foreign citizen or national can become a U.S. citizen. It is a long and complicated process that requires a lot of paperwork, interviews and tests.

The first step is to determine if you are eligible to apply for naturalization. To be eligible, you must meet certain requirements, such as being a legal permanent resident for at least five years, good moral character, no criminal record, and a basic knowledge of U.S. history and government.

The next step is to submit the required paperwork, which includes the N-400 form and supporting documents demonstrating your eligibility. You may also be required to submit additional documents, such as birth and marriage certificates, military records, and financial documents.

Once your application has been submitted and accepted, you will be scheduled for an interview at a local USCIS office. During the interview, you will be asked questions about your application, including questions about your background, criminal record, and knowledge of U.S. history and government. You may also be required to take an English and civics test.

Following the interview, the USCIS will review your application and make a decision. If approved, you will be scheduled for a naturalization ceremony, where you will take the Oath of Allegiance and officially become a U.S. citizen.

The naturalization process can be long and complicated, but with the right help and preparation it is possible to become a U.S. citizen.

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Cups and glasses are taking too long to air dry this could be caused by the bad ventilation system.

Bad ventilation, or the lack of air flow.

To make sure that no moisture is left on them.

If the moisture or some water drops are left on glasses or cups.

These water drops leave a strange mark and causes a smell in dishes.

Other reasons of cups and glasses are taking too long to dry than the improper working of ventilation can be:

Humidity in Air, Improper Heat, and use of Soap

Humidity in Air, causes high moisture in air that results in the delay in drying of dishes that may lead to even bad smell and bacterial infection on cups and glasses causing bad health.

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No, oxygen and nitrogen will not form an ionic bond.

Covalent bonds formed by sharing electron pairs are what bind nitrogen and oxygen together. Nitrogen has an electronegativity of 3.0, while oxygen has a value of 3.5.

A covalent bond is formed when two atoms exchange one or more pairs of electrons. The two atomic nuclei are concurrently drawing these electrons to them. When the difference between the electronegativities of two atoms is too tiny for an electron transfer to take place to create ions, a covalent bond is formed. Hydrogen (H₂), oxygen (O₂), nitrogen (N₂), water (H₂O), and methane (CH₄) are five examples of covalent bonding. A covalent bond is a type of chemical relationship where two atoms share electron pairs.

Thus, bond between Nitrogen and oxygen is not ionic but covalent bond.

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Batteries are classified as Class 9 hazardous materials under U.S. and international regulations.

Because they contain hazardous substances that can be dangerous if released into the environment.

Batteries contain heavy metals and other substances that can be toxic, corrosive, and even explosive. They also can cause fires if not handled properly.

As such, they are subject to regulations to ensure they are safely handled, stored, and transported in a safe and responsible manner. Additionally, these regulations also require that batteries be disposed of properly, to prevent them from ending up in landfills and polluting the environment.

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The Brønsted-Lowry reaction can be written as; [tex]HPO_{4} ^{2-} + HNO_{2} ----- > H_{2} PO_{4} ^- + NO_{2}^-[/tex]. A proton was transferred in the reaction.

We know that there are various definitions of acids and bases. One of the definitions of an acid is that an acid is a substance that is able to donate a proton. In this case we look upon an acid as a proton donor in a reaction. The base is a substance that is able to able to accept to proton hence we would classify the base as a proton acceptor in a given reaction.

We now have to look at the reaction as we have seen it here. In this case, we are looking at the reaction between the substance and we are looking at the one that looses a proton and the one that gained a proton so as to be able to obtain the products of the reaction.

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