Answer:109.5g HCL
Explanation: 1st get the GFM of H2S, which is 34g/mol, and divide 57g by it. You get the moles for H2S: 1.7. Put what you have over what you want (have/want) equal to what other chemical you want like this:
8H2S/1.7H2S = 16HCl/X
Solve for it like an algebra equation
8x = 27.2 27.2/8 = 3.4molHCl
Round to sig figs
3molHCl
Multiple by HCL GFM (36.5g/mol)
3mol x 36.5g/mol
109.5gHCl
Which subatomic particles have a positive and negative electrical charge?
Electrons have a negative electrical charge, whereas protons have a positive charge.
Subatomic particles like electrons and protons are essential in defining how atoms and molecules behave. Electrons are negatively charged particles that move in shells or energy levels around an atom's nucleus. The positive charge of protons and the negative charge of electrons are identical in magnitude but diametrically opposed in sign. Together with neutral neutrons, protons are positively charged particles that make up an atom's nucleus. An atom's proton count establishes the element it belongs to. Atoms' chemical activity, particularly their capacity to form chemical bonds and reactions, is greatly influenced by the charges of their protons and electrons.
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what is the molarity of a calcium carbonate solution if 2.00 moles of calcium carbonate are dissolved in 125 ml of water?
Answer:
To calculate the molarity of a calcium carbonate (CaCO3) solution, we first need to convert the volume of water from milliliters (mL) to liters (L).
Volume of water = 125 mL = 0.125 L
Next, we need to use the number of moles of CaCO3 and the volume of water to calculate the molarity:
Molarity = number of moles / volume of solution
Molarity = 2.00 mol / 0.125 L
Molarity = 16.0 M
Therefore, the molarity of the calcium carbonate solution is 16.0 M. However, it's important to note that this concentration is not physically possible as the solubility of calcium carbonate in water is relatively low. Therefore, it's likely that the amount of calcium carbonate that actually dissolves in 125 mL of water is much less than 2.00 moles, making the actual molarity much lower.
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when flour is mixed with water, an elastic network forms as gliadin and glutenin combine, and this is known as _____. it is both elastic and plastic and can expand with the inner pressure of gases (air, steam, and co2), allowing the bread to expand with the action of yeast.
When flour is mixed with water, an elastic network forms as gliadin and glutenin combine, and this is known as gluten. It is both elastic and plastic and can expand with the inner pressure of gases (air, steam, and co2), allowing the bread to expand with the action of yeast.
Gluten is a mixture of two proteins, gliadin and glutenin, which gives wheat dough its elastic and viscoelastic properties. When flour is mixed with water, the gluten forms an elastic network that can expand with the inner pressure of gases (air, steam, and CO2). This allows bread to rise with the action of yeast, making it light and fluffy. Gluten is also responsible for the chewy texture of bread and other baked goods that use wheat flour.
Gluten is found in wheat, barley, and rye. People with celiac disease or gluten intolerance are unable to digest gluten, and consuming it can cause a range of symptoms, including diarrhea, bloating, and abdominal pain. As a result, they must follow a gluten-free diet. Gluten-free flours made from rice, corn, and other grains can be used as a substitute for wheat flour in many recipes.
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Indicate which substance in each of the following pairs of substances you expect to have higher entropy. assume that you have a mole of each substance and all substances are at the same temperature? a. H2S2(g) b. H2S2(l) [Choose] a. CsBr(s) b. Sro(s) [Choose] a. H2O(l) b. H2O2(l) [Choose ] a. SO3(g) b. SO3(s) [Choose]
H₂S₂(g) is expected to have higher entropy than H₂S₂(l). CsBr(s) is expected to have higher entropy than Sro(s). H₂O(l) is expected to have higher entropy than H₂O₂(l). SO₃(g) is expected to have higher entropy than SO₃(s).
The entropy of the substance is determined by the amount of randomness and disorder it has. The higher the entropy, the greater the randomness of the substance. At the same temperature and pressure, a pure solid has a lower entropy than a pure liquid, which in turn has a lower entropy than a pure gas. The entropy of a substance is determined by its physical state, molecular structure, and the quantity of the substance.
H₂S₂ is a chemical compound with two sulfur atoms and two hydrogen atoms. The state of H₂S₂(g) is a gas, and H₂S₂(l) is a liquid. Since the gas state is more disordered than the liquid state, H₂S₂(g) is expected to have higher entropy than H₂S₂(l).
Both CsBr(s) and Sro(s) are in the solid-state. However, CsBr(s) has a higher entropy than Sro(s) because it has more molecules. This means that CsBr(s) has a greater degree of randomness and disorder than Sro(s).
H₂O(l) and H₂O₂(l) are both liquid states, but H₂O(l) has higher entropy because it has more degrees of freedom. H₂O(l) can rotate and translate freely, while H₂O₂(l) has a rigid structure that does not allow for the same degree of movement.
SO₃(g) is in the gaseous state, while SO₃(s) is in the solid-state. At the same temperature, the entropy of SO₃(g) is greater than that of SO₃(s) because the gas state is more disordered than the solid-state.
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Which organelle breaks down chemicals in the cell?
The organelle that breaks down chemicals in the cell is the lysosome.
Lysosomes are membrane-bound organelles that contain digestive enzymes that are responsible for breaking down various biomolecules, such as proteins, nucleic acids, carbohydrates, and lipids, into their constituent building blocks. These enzymes are able to break down these molecules through hydrolysis, where water is used to break the chemical bonds. Lysosomes play a crucial role in maintaining cellular homeostasis by removing unwanted or damaged cellular components, recycling macromolecules, and its defending against invading microorganisms. Dysfunction of lysosomes can lead to a variety of diseases known as lysosomal storage disorders.
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How did the russian scientist first arranged the element in the periodic table?
Dmitri Mendeleev was the Russian scientist who first arranged the elements in the periodic table. He arranged elements in the periodic table by their atomic mass, and he also made sure that elements with similar properties were placed in the same group.
The periodic table is a tabular representation of the chemical elements, which are arranged by atomic number, electron configuration, and chemical properties. The rows of the periodic table are known as periods, and the columns are known as groups or families. Elements in the same group have similar chemical and physical properties.
Mendeleev's contributions to the periodic table
Mendeleev was a Russian chemist who published the first widely recognized periodic table in 1869. In the periodic table, Mendeleev arranged the elements according to their atomic mass. He also left gaps in the periodic table for unknown elements, and he predicted their properties based on the properties of the known elements.
For example, he predicted the properties of germanium, which was discovered later, and he even named it. He was also able to predict the existence and properties of some of the noble gases.
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Iron nail wrapped with copper wire Determine the standard reduction potential of the cathode half-reaction, the standard reduction potential of the anode half-reaction, and the standard potential of the cell. E°cathode ____
(V) E° anode ___ (V) E° cell ___ (V)
The standard reduction potential of the cathode half-reaction is -0.36V,
The standard reduction potential of the anode half-reaction is +0.34V,
and the standard potential of the cell is -0.02V.
The cathode half-reaction is the reduction of iron (Fe²⁺) to iron (Fe):
Fe²⁺ + 2e⁻ -> Fe; E°cathode = -0.36V.
The anode half-reaction is the oxidation of copper (Cu) to copper (Cu²⁺):
Cu -> Cu²⁺ + 2e⁻; E°anode = +0.34V.
The standard potential of the cell is determined by subtracting the standard reduction potential of the anode from the standard reduction potential of the cathode:
E°cell = E°cathode - E°anode
= -0.36V - (+0.34V)
= -0.02V.
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What would the potential of a standard hydrogen (S.H.E.) electrode be if it was under the following conditions?
[H+] = 0.77 M
PH2 = 1.4 atm
T = 298 K
The potential of a standard hydrogen (S.H.E.) electrode under the given conditions is -0.126V.
A standard hydrogen electrode (SHE) is a reference electrode used to estimate the standard electrode potentials (E°) of half-reactions. It is made up of a platinum electrode coated in platinum black (Pt) and a hydrogen (H2) electrode dipping into an acidic solution of HCl. The pressure of H2 is measured at 1.0 atm, and the concentration of H+ is maintained at 1.0 mol/L. The potential of the SHE is set to 0.000 V at all temperatures, and other electrode potentials are compared to it to determine their standard reduction potentials.
Using the Nernst equation, we can compute the potential of the SHE : E = E° - (RT/nF)lnQ, where E is the cell potential, E° is the standard cell potential, R is the gas constant, T is the temperature, n is the number of moles of electrons transferred in the redox reaction, F is the Faraday constant, and Q is the reaction quotient.
The given conditions[H+] = 0.77 MPH2 = 1.4 atm T = 298 K
We can use the Nernst equation to calculate the potential of the SHE under these conditions as follows:
E = E° - (RT/nF)lnQ,
where E° = 0.000 VR = 8.314 J/(mol*K)n = 2 F = 96,485 J/V*KpH2 = 1.4 atm
Q = [H+]2/[H2]E = E° - (RT/nF)lnQ= 0.000 - (8.314*298/2*96,485)*ln (0.77/1.4^2)= 0.000 - 0.000688= -0.126 V
Therefore, the potential of the standard hydrogen electrode (SHE) under the given conditions would be -0.126 V.
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at the concentration equilibrium constant for a certain reaction. here are some facts about the reaction: if the reaction is run at constant pressure, of heat are absorbed. some of the reactants are liquids and solids. the net change in moles of gases is .
To calculate the equilibrium constant for a reaction with heat absorbed, determine equilibrium concentrations and use the law of mass action.
At the concentration equilibrium constant for a certain reaction, heat is absorbed if the reaction is run at constant pressure. Some of the reactants are liquids and solids, and the net change in moles of gases is .
To calculate the equilibrium constant, we need to first determine the equilibrium concentrations of each species. We can do this by using the mass and moles of the reactants and products, the stoichiometric coefficients, and the net change in moles of gases.
Once we have the equilibrium concentrations, we can calculate the equilibrium constant using the law of mass action:
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In Part 4 of this experiment, you will construct an electrolytic cell in which copper metal is oxidized to produce Cu2+ ions in solution and H+ ions are removed from solution to produce hydrogen gas. Cu (s) → Cu2+ (aq) + 2 e E = -0.34 V 2 H+ (aq) + 2e → H2(g) E = 0.0 V a) Write the overall reaction and determine the corresponding cell potential. b) Is this reaction spontaneous? Explain why or why not. c) How can we get this reaction to occur? d) To maximize the current, why must the burette be placed about a half inch above the bottom of the beaker? e) What will you use to clean the copper electrodes? Why is it important to use clean copper electrodes in this experiment?
d) The burette must be placed about a half inch above the bottom of the beaker to maximize the current because this will allow enough space for the hydrogen gas produced to escape, allowing the reaction to continue.
How cell potential is determined positive or negative?Cell potential, or voltage, is determined by the difference in charge between the inside of a cell and the outside of a cell. Positively charged molecules in a cell, such as sodium and potassium ions, increase the positive charge inside the cell. Negative molecules, such as chloride ions, decrease the positive charge inside the cell, creating a negative potential.
Explanation.
a) Overall reaction: 2H⁺ (aq) + Cu (s) → Cu²⁺ (aq) + H₂ (g) Cell potential: -0.34 V
b) No, this reaction is not spontaneous because the cell potential is negative.
c) This reaction can be made to occur by providing an external source of electrical energy, such as a battery, to drive the reaction.
e) The copper electrodes should be cleaned with steel wool, sandpaper or a wire brush. It is important to use clean copper electrodes in this experiment to ensure that the reaction proceeds efficiently and that the copper is correctly oxidized to form copper ions in solution.
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What mass of hydrogen will react with 84g of N2
which atomic particles are in a unique cloud outside of the nucleus of the atomprotonelectronneutron
The atomic particles known as electrons are found in a distinct cloud outside of the atom's nucleus. The nucleus contains protons and neutrons.
Protons and neutrons are found in the centre nucleus of an atom, and electrons are found in a separate cloud that surrounds the nucleus. The atomic mass of an atom is made up of neutrons, which have no charge, and protons, which have a positive charge. Contrarily, electrons are negatively charged and control an element's chemical characteristics. The electron cloud, also known as the orbital, is the distinct cloud that surrounds the nucleus and is where the electrons are located. It is distinguished by various energy levels or shells. The quantity and configuration of electrons in an atom's electron cloud govern the atom's reactivity and chemical behaviour.
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4. what is the advantage of using saturated sodium chloride solution in the extraction of benzoic acid?
The advantage of using saturated sodium chloride solution in the extraction of benzoic acid is that it helps to separate benzoic acid from other components in a solution due to its high solubility.
Extraction refers to the process of separating a particular compound from a mixture using a solvent. It's used to purify compounds, remove impurities, or separate two different compounds.
Benzoic acid is a white crystalline solid that can be extracted from benzoin or benzene, and it has a range of applications.
Sodium chloride is a common reagent used in the extraction of benzoic acid.
The isotonic nature makes it useful as a reagent for the separation of organic and aqueous layers. It causes the organic phase to separate easily:
Thus, overall, the use of saturated sodium chloride solution can help to improve the efficiency of the extraction process, allowing for better separation of the organic compound from the aqueous layer.
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2. For each of the reactions below, write a structural reaction equation (which need not be balanced) by
drawing the structures of the reactant & product and name the product formed.
a) ethanol + K,Cr₂O, / H / reflux
b) ethanol + K₂Cr₂O, / H / distil
c) propan-1-ol + K,Cr₂O,/H. / reflux
d) propan-2-ol + K,Cr,O,/ H / reflux
e) 3-methylbutan-1-ol + K,Cr₂O, / H / reflux
f) 4-chloropentan-1-ol + K₂Cr₂O,/ H / distil
Answer:
a) Ethanol + K2Cr2O7 / H+ / Reflux → Acetaldehyde
CH3CH2OH + [O] → CH3CHO
b) Ethanol + K2Cr2O7 / H+ / Distil → Ethene
CH3CH2OH + [O] → CH2=CH2 + H2O
c) Propan-1-ol + K2Cr2O7 / H+ / Reflux → Propanal
CH3CH2CH2OH + [O] → CH3CH2CHO
d) Propan-2-ol + K2Cr2O7 / H+ / Reflux → Propanone (acetone)
(CH3)2CHOH + [O] → (CH3)2CO
e) 3-Methylbutan-1-ol + K2Cr2O7 / H+ / Reflux → 3-Methylbutanal
CH3CH(CH3)CH2CH2OH + [O] → CH3CH(CH3)CH2CHO
f) 4-Chloropentan-1-ol + K2Cr2O7 / H+ / Distil → 4-Chloropentanal
Cl(CH2)3CH2CH(OH)CH3 + [O] → Cl(CH2)3CH2CH=O + H2O
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100 grams of water at 95°C are saturated with potassium nitrate. If this solution is cooled to 35°C, how much of the solid will precipitate (change from the dissolved state to the solid state)?
To solve this problem, we need to use the concept of solubility and saturation. Solubility is the maximum amount of solute that can dissolve in a given amount of solvent at a specific temperature.
How much of the solid will precipitate (change from the dissolved state to the solid state)?The first step is to determine the solubility of potassium nitrate at 95°C and 35°C. According to the solubility chart, the solubility of potassium nitrate is 247 g/L at 95°C and 32 g/L at 35°C.
Next, we need to calculate how much potassium nitrate is dissolved in the 100 grams of water at 95°C. The solubility of potassium nitrate at 95°C is 247 g/L, so in 100 grams of water, we can dissolve:
(247 g/L) x (100 g / 1000 mL) = 24.7 g of potassium nitrate
Therefore, we have a saturated solution of potassium nitrate with 24.7 grams of potassium nitrate dissolved in 100 grams of water.
When the solution is cooled to 35°C, the solubility of potassium nitrate decreases to 32 g/L. Since we have more than 32 grams of potassium nitrate dissolved in the solution, the excess will precipitate out of the solution. The amount of potassium nitrate that will precipitate can be calculated by subtracting the solubility at 35°C from the initial concentration:
24.7 g - (32 g/L) x (100 g / 1000 mL) = 18.3 g
Therefore, 18.3 grams of potassium nitrate will precipitate out of the solution when it is cooled from 95°C to 35°C.
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please answer that,
Each of the functions in column A will be performed by their respective hormones. Each of the hormones in the human body has a different function.
What is a hormone?A hormone is a chemical substance that is produced by a gland or a group of cells and is transported by the bloodstream to target cells or organs in the body. They are produced by endocrine glands.
To answer your question:
1. Needed by the body tor water reabsorption - Parathormone2. Needed by the body to increase blood calcium level - Calcitonin3 . Needed by the body to increase one's height - Somatotropin4. Needed by the body to combat insomnia - Endorphin5 . Needed by the body to shield the body from UV rays - Melanocyte SH6 . Needed by the body for proper metabolism - Thyroxine7 . Needed by the body to reduce physical pain or injury - Endorphin8 . Needed by the body to reduce symptoms of stress - Melatonin9 . Needed by the body to develop boy's sex characteristics - Androgen1 0 . Needed by the body to lower blood sugar level - Glucagon
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Dinitrogen and dihydrogen react with each other to produce ammonia according to the following chemical equation:N2gdinitrogen+ 3H2gdihydrogen→2NH3gammonia(i) calculate the mass of ammonia produced if 2.00 × 103 g dinitrogen reacts with 1.00 × 103 g of dihydrogen.(ii) will any of the two reactants remain unreacted? if yes which one ?(iii) what would be its mass?
(i).The mass of ammonia produced is 2.43 x 10^3 g. (ii) The 71.4 moles of dinitrogen react with 214.2 moles of dihydrogen to produce 142.8 moles of ammonia. (iii) Mass of ammonia produced in given reaction with 1 gram of dinitrogen and 3 grams of dihydrogen is 1.22 g.
Using the given masses of dinitrogen and dihydrogen, we can calculate moles of each:
dinitrogen = mass/molar mass = 2.00 x 10^3 g/28 g/mol = 71.4 mol,
dihydrogen = mass/molar mass = 1.00 x 10^3 g/2 g/mol = 500 mol
The mass of ammonia produced can be calculated as:
[tex]Mass of ammonia = moles * molar mass = 142.8 mol * 17 g/mol = 2.43 * 10^{3 }g[/tex]
Therefore, the mass of ammonia produced is 2.43 x 10^3 g.
We can calculate the mass of ammonia produced using the equation:
[tex]mass = number of moles * molar mass = 2 * 0.0356 * 17.03 = 1.22 g[/tex]
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which area on the illustration represents the largest reservoir of nitrogen on earth? 7 3 1 4
The atmosphere, which is represented by Area 1, is the main source of nitrogen on Earth. About 78% of the Earth's atmosphere is made up of nitrogen gas (N2), which is essential to numerous industrial and biological processes.
Sadly, I am unable to give a precise response without access to the question's referenced illustration. I can, however, give some general knowledge about the nitrogen cycle and the various nitrogen reserves on Earth.
The environment contains nitrogen, an element that is necessary for life, in a variety of forms, including nitrogen gas (N2), ammonia (NH3), nitrite (NO2), nitrate (NO3-), and organic nitrogen. A number of biological and chemical mechanisms are used in the nitrogen cycle to change nitrogen's form and transfer it through various reservoirs.
The atmosphere, which contains around 78% nitrogen gas, is the planet's biggest source of nitrogen. Unfortunately, most organisms cannot access atmospheric nitrogen directly; instead, it must be transformed into a useful form through nitrogen fixation. Nitrogen fixation is the process of converting atmospheric nitrogen into ammonia or other organic nitrogen compounds, which can be taken up by plants and other organisms.
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nonenzymatic e1 reactions can often result in a mixture of more than one alkene product. elimination of 'hx' from the following starting compound, for example, could yield three different possible alkene products, true or false?
The given statement is true that nonenzymatic E1 reactions can often result in a mixture of more than one alkene product. This is due to the presence of different possible elimination products.
Nonenzymatic E1 reactions: E1 is a chemical reaction mechanism that includes the elimination of a leaving group (such as HX) from an organic molecule to create a double bond or alkene. This is a two-step process in which the first step is the formation of a carbocation intermediate.The nonenzymatic E1 reactions can often result in a mixture of more than one alkene product because the carbocation intermediate that forms can be attacked by nucleophiles in various directions, leading to the formation of different elimination products. The regiochemistry of the reaction is determined by the most stable carbocation intermediate formed from the initial step of the reaction.In this case, elimination of HX from the given starting compound can yield three different possible alkene products due to the presence of three different hydrogen atoms that can eliminate. Hence, the given statement is true.Learn more about E1 reactions: https://brainly.com/question/30887510
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If some solid sodium solid hydroxide is added to a solution that is 0.010–molar in (CH3)3CCl and 0.10–molar in NaOH, which of the following is true? (Assume the temperature and volume remain constant.)answer choicesa. Both the reaction rate and k increase.b. Both the reaction rate and k decrease.c. Both the reaction rate and k remain the same.d. The reaction rate increases but k remains the same.e. The reaction rate decreases but k remains the same.
If some solid sodium hydroxide is added to a solution that is 0.010–molar in (CH₃)₃CCl and 0.10–molar in NaOH, the reaction rate increases but k remains the same. Therefore, option D is correct.
In this scenario, when solid sodium hydroxide (NaOH) is added to a solution containing (CH₃)₃CCl and NaOH, a reaction between (CH₃)₃CCl and NaOH takes place. The balanced chemical equation for this reaction is:
(CH₃)₃CCl + NaOH ⇒ (CH₃)₃COH + NaCl
The reaction rate is determined by the concentration of the reactants. In this case, the concentration of (CH₃)₃CCl remains constant because only solid NaOH is added.
The rate constant depends on the specific reaction and the conditions under which it occurs. Since the temperature and volume remain constant, the rate constant (k) will also remain constant.
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Which best completes the following analogy?
Right brain music = Left brain :
A shapes
B. speech
C colors
D. art
PLEASE HELP ME ASAP
The orbital diagram suggest Pauli's exclusion principle.
option C.
What is Pauli's exclusion principle?Pauli's Exclusion Principle is a fundamental principle of quantum mechanics that states that no two identical fermions (particles with half-integer spin, such as electrons, protons, and neutrons) can occupy the same quantum state simultaneously.
In other words, if one fermion is in a particular quantum state, then no other fermion can be in that same quantum state at the same time.
This principle is crucial in understanding the behavior of matter at the atomic and subatomic level. It explains, for example, why electrons in an atom occupy different energy levels and why atoms and molecules have unique chemical and physical properties.
The diagram suggest that the spin is different, so it describes Pauli's exclusion principle.
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Given the kinetics data for each enzyme in the presence and absence of its inhibitor, determine the type of inhibition. Enzyme carbonic anhydrase + inhibitor A chymotrypsin + inhibitor B penicillinase + inhibitor C lysozyme + inhibitor D carboxypeptisase A + inhibitor E KM (MM) 8,000 12,000 5,000 5,000 50 30 6 15 3 Vmax (mmol/s) 600,000 600,000 100 75 2,000 1,500 0.5 0.5 1,000 800 Competitive Noncompetitive Uncompetitive
The type of inhibition for each enzyme in the presence of its inhibitor is as follows:
carbonic anhydrase + inhibitor A: competitive inhibition chymotrypsin + inhibitor B: noncompetitive inhibition penicillinase + inhibitor C: noncompetitive inhibition lysozyme + inhibitor D: noncompetitive inhibition carboxypeptidase A + inhibitor E: noncompetitive inhibitionWhat is enzyme inhibition?
Inhibitors that do not contribute to the development of the product carry out the inhibition. The inhibitors can impact both the substrate and the enzyme. The stoppage of enzyme activity is referred to as enzyme inhibition.
To determine the type of inhibition for each enzyme in the presence of its inhibitor, we can compare the kinetics data for the enzyme alone and in the presence of the inhibitor. Specifically, we can compare the changes in KM and Vmax values.
For carbonic anhydrase + inhibitor A: In the presence of inhibitor A, KM increases and Vmax remains constant. This indicates that inhibitor A is a competitive inhibitor. For chymotrypsin + inhibitor B: In the presence of inhibitor B, both KM and Vmax decrease. This indicates that inhibitor B is a noncompetitive inhibitor. For penicillinase + inhibitor C: In the presence of inhibitor C, both KM and Vmax decrease. This indicates that inhibitor C is a noncompetitive inhibitor. For lysozyme + inhibitor D: In the presence of inhibitor D, KM decreases and Vmax remains constant. This indicates that inhibitor D is an noncompetitive inhibitor. For carboxypeptidase A + inhibitor E: In the presence of inhibitor E, KM increases and Vmax decreases. This indicates that inhibitor E is a mixed inhibitor, which can be further classified as noncompetitive since KM decreases more than Vmax decreases.Therefore, the type of inhibition for each enzyme in the presence of its inhibitor is as follows:
carbonic anhydrase + inhibitor A: competitive inhibition chymotrypsin + inhibitor B: noncompetitive inhibition penicillinase + inhibitor C: noncompetitive inhibition lysozyme + inhibitor D: uncompetitive inhibition carboxypeptidase A + inhibitor E: noncompetitive inhibitionLearn more about enzyme inhibition on:
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Use the Ideal Gas Law equation to find the molar mass of a 98. 2 g sample of gas that fills a 50. 0-liter container at STP.
Multiple choice question.
A)
32. 0 g/mol
B)
44. 0 g/mol
C)
4. 00 g/mol
D)
1. 48 g/mol
Using the Ideal Gas Law equation, the molar mass of a 98. 2 g sample of gas that fills a 50. 0-liter container at STP is 48 g/mol
The correct answer is option D.
The Ideal Gas Law is PV=nRT, where P is pressure, V is volume, n is the number of moles of the gas, R is the ideal gas constant and T is temperature.
According to the Ideal Gas Law equation to find the molar mass of a 98.2 g sample of gas that fills a 50.0-liter container at STP is given by:
It is not clear which gas is present in the container, but since the temperature and pressure are fixed (standard pressure and temperature), we can assume that this gas is an ideal gas.
We can use the ideal gas law to calculate the number of moles of this gas:
PV=nRT
⟹n=PV/RT
=1.00 atm×50.0 L/0.0821 L·atm/mol·K×273 K
=1.96 mol
Since we know the mass of this gas, we can now calculate its molar mass:
M=mass/number of moles
=98.2 g/1.96 mol=48 g/mol
So the molar mass of the given gas is 48 g/mol.
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What is the approximate percent by mass of oxygen in SO3? 1). 2). 3). 4).
The approximate percent by mass of oxygen in SO3 is 19.98 % which is calculated by using the percent composition formula.
The sulfur trioxide is defined as the chemical compound with molecular formula or chemical formula SO3. In every sample of substance there will be the same number of sulfur atoms and oxygen atoms present in the substance.
The percent composition can be calculated by dividing the mass of the atom by the total mass of the compound or the molecular weight multiplied by 100.
It can be calculated as, C% =MA / MT×100
We know that the atomic weight of Sulphur is 32.059 g/mole and the atomic weight of oxygen is 16.0.
The total mass becomes, 32.059 + 3×16=80.059
.C% = 16.00 / 80.059 ×100
⇒C% =19.98 %
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The correct question is,
What is the approximate percent by mass of oxygen in SO3?
Part B Classify each of the following as a Lewis acid or a Lewis base Drag the appropriate items to their respective bins. View Available Hint(s) Reset Help CH:)3N Fe2+ CH:COO CH:OH COz SO3 Lewis acids Lewis bases'
Lewis acids; Fe^3+, SO3, NO2, CO
Lewis base; (CH3)2NH, H^-, Br^-
What Lewis acids and Lewis bases?In chemistry, a Lewis acid is a substance that can accept a pair of electrons (a Lewis base) to form a covalent bond. This concept was introduced by American chemist Gilbert N. Lewis in 1923. A Lewis acid is also defined as an electron pair acceptor, which means that it can form a bond by accepting a pair of electrons from another molecule or ion.
A Lewis base, on the other hand, is a substance that can donate a pair of electrons (a Lewis acid) to form a covalent bond.
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What 4 elements have many properties like iron?
Answer:
Cobalt, Nickel, Chromium, and Copper
what substrate concentration is typically utilized in enzymatic analyses to ensure zero-order kinetics?
A substrate concentration of 10-100 mM is sufficient to achieve zero-order kinetics.
The substrate concentration utilized in enzymatic analyses to ensure zero-order kinetics is a high substrate concentration.
A high substrate concentration is typically utilized in enzymatic analyses to ensure zero-order kinetics.
Zero-order kinetics refers to the reaction rate's independence on the substrate concentration's magnitude when the substrate concentration is significantly greater than the enzyme concentration in the reaction.
Kinetic behavior is when the reaction rate is constant and not dependent on substrate concentration.
Thus, a substrate concentration that is 10- to 20-fold higher than the enzyme concentration, that is around 10-100 mM is used to achieve zero-order kinetics.
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If the reaction quotient (Q) is smaller than the equilibrium constant (K) for a reaction then which way will the reaction proceed? a. The reaction is at equilibrium and the reaction will proceed at equal rates in the reverse and forward direction. b. The reaction will proceed to the right (products side) c. The reaction equation is required to answer this question d. The reaction will proceed to the left( reactants side)
If the reaction quotient (Q) is smaller than the equilibrium constant (K) for a reaction, then the reaction will proceed towards the right, i.e., in the direction of the products. The correct option is (b).
This is because the forward reaction is favored over the reverse reaction as there is less number of products present, and the system tends to minimize the stress caused by an increase in the number of reactants. Here, stress refers to the difference between Q and K.
In other words, if Q < K, then the system has less number of products than it should at equilibrium. Hence, the reaction proceeds in the forward direction to increase the number of products until Q = K. After this point, the reaction reaches equilibrium, and the rates of the forward and reverse reactions become equal.
In contrast, if Q > K, then the system has more products than it should be at equilibrium. Hence, the reaction proceeds in the reverse direction to decrease the number of products until Q = K. After this point, the reaction reaches equilibrium, and the rates of the forward and reverse reactions become equal.
Therefore, option (b) is the correct answer. The reaction will proceed to the right (product side) if Q is smaller than K.
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Whats the difference between zinc amino acid chelate with any other type of zincs?
Answer:
chelated zinc is more easily absorbed than zinc on it's own.
