esterase is an enzyme that catalyzes the hydrolysis of esters. it hydrolyzes esters of l-amino acids more rapidly than esters of d-amino acids. how can this enzyme be used to separate a racemic mixture of amino acids?

The mass balance equation for the solution can be expressed as: 2[MnCl₂] = [Mn₂+] + [MnCl+] + [MnOH+] + 2[Cl-]

The charge balance equation for an aqueous solution of MnCl₂ that ionizes to Mn₂+, Cl-, MnCl+, and MnOH+ can be written as:

2[Mn₂+] + [Cl-] + [MnCl+] + [MnOH+] = 2[Cl-]

This equation ensures that the total positive charge from the cations (Mn₂+, MnCl+, and MnOH+) and the total negative charge from the anions (Cl-) balance each other.

On the other hand, the mass balance equation for the solution can be expressed as:

2[MnCl₂] = [Mn₂+] + [MnCl+] + [MnOH+] + 2[Cl-]

This equation ensures that the total mass of the compound MnCl₂ is equal to the sum of the masses of the ions present in the solution.

In summary, the charge balance equation accounts for the distribution of charges between the cations and anions, while the mass balance equation ensures the conservation of mass in the solution by considering the stoichiometry of the ionization process.

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\(\bold{\huge{\underline{Answer}}}\)

Reaction :-

Reaction :-

\(\sf{C2H6SO4 + H2O}{\sf{\underline{\,\,yeilds\,\,}}}{\sf{ethanol}}\)

Reaction :-

\(\sf{C2H5Cl+ KOH}{\sf{\underline{\,\,boils\,\,}}}{\sf{C2H5OH + KCl}}\)

Process 1:

Organic reactant: Ethylene (C₂H₄)

Type of reaction: Addition reaction

Process 2:

Organic reactant: Carbon monoxide (CO) and hydrogen (H₂)

Type of reaction: Catalytic hydrogenation

1. In the first process, ethanol can be manufactured by the addition reaction of ethylene (C₂H₄). Ethylene, a hydrocarbon, undergoes an addition reaction with water (H₂O) in the presence of a catalyst to produce ethanol (C₂H₅OH). The reaction involves breaking the carbon-carbon double bond in ethylene and forming new single bonds with two hydrogen atoms from water, resulting in the formation of ethanol.

2) In the second process, ethanol can be manufactured through a catalytic hydrogenation reaction. This involves reacting carbon monoxide (CO) and hydrogen (H₂) in the presence of a suitable catalyst, such as copper or zinc, at elevated temperature and pressure. The reaction proceeds via the reduction of carbon monoxide and the addition of hydrogen atoms, leading to the formation of ethanol (C₂H₅OH).

This process is commonly known as the "synthesis gas fermentation" or "syngas fermentation" and is an essential method for producing ethanol from syngas derived from various feedstocks.

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Answer:

Entropy,mass and volume.... I think

Mass is the extensive property of a sample of aluminum. Therefore, option (A) is correct.

The extensive property can be described as a physical property of matter that changes with a change in the size and shape of the matter. Therefore, the extensive property of any substance varies directly with the mass.

Extensive properties are the value of the property of the system that must be equal to the sum of the values of different parts of the system. These properties depend on the amount of matter contained in the system.

Examples of Extensive properties are temperature, pressure, density, boiling point, etc. The ratio of the two extensive properties is an intensive property such as density.

The mass of a sample of aluminum is an example of extensive property as it depends on the amount of aluminum in the given sample. This property of the sample is proportional to the size of the system.

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Your question is incomplete, most probably the complete question was,

Which of the following is an extensive property of a sample of aluminum?

A) Mass

B) Temperature

C) Pressure

D) Density

a. Mole to mole ratios relate the number of moles of any substance in a balanced chemical reaction. They are based on the balanced chemical equation.

Answer:

length=60cm

breadth=48cm

height=36cm

volume of the metal block=l×b×h

=60×48×36

=103680cm³

if one cm³ weighs 9gm then the total weight of the block is=103680×9

=933120gm

=933.12kg

Answer:

A) The substance is in the gas phase only in "region 5".

B) The substance is in both the liquid and solid phase in "region 2"

C) The substance is only in the liquid phase in "region 3".

D) The melting point is the temperature at "region 2".

E) The boiling point is the temperature at "region 4".

Explanation:

The graph is a graph of the solid, liquid, vapour phase change diagram.

In phase 1, the substance is ice which is the solid phase.

In phase 2,it undergoes melting in a forward reaction.

In phase 3, the melting from phase 2 has now changed to water which is liquid phase.

In phase 4, the substance is undergoing a forward reaction known as evaporation.

In phase 5, the evaporation from stage 4 will turn the liquid into vapour known as the gas phase.

A) The substance is in the gas phase only in "region 5".

B) The substance is in both the liquid and solid phase in "region 2"

C) The substance is only in the liquid phase in "region 3".

D) The melting point is the temperature at "region 2".

E) The boiling point is the temperature at "region 4".

The change of state of a substance occurs when heat is either added or removed from the substance.

Change of state is a process in which a substance changes from one state of matter to another due to heat changes.

From the graph given:

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This problem is providing us with the both mass of aluminum and copper (II) chloride utilized in a chemical reaction and asks for the best statement about the final state of the reaction, which turns out to be less than 6.0 grams of copper is formed, and some copper chloride is left in the reaction mixture.

In chemistry, we use stoichiometry as a tool for calculating mole-mass relationships in chemical reactions. Thus, a balanced chemical equation is required as well as the corresponding mole ratio of the defined to the required substance and their molar masses when given grams.

Hence, the balanced chemical equation here is:

\(3CuCl_2 + 2Al \rightarrow 2AlCl_3 + 3Cu\)

Next, we can use the given masses to calculate the mass of copper produced by each reactant:

\(1.50gAl*\frac{1molAl}{26.98gAl}*\frac{3molCu}{2molAl}*\frac{63.546gCu}{1molCu} =5.30gCu\\\\14gCuCl_2*\frac{1molCuCl_2}{134.45gCuCl_2}*\frac{3molCu}{3molCuCl_2}*\frac{63.546gCu}{1molCu} =6.64gCu\)

Where we can see 5.30 g of copper is the correct produced amount as Al is found to be the limiting reactant, which is all consumed, and therefore the copper (II) chloride is in excess.

Thereby, we conclude that less than 6.0 grams of copper is formed, and some copper chloride is left in the reaction mixture.

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Answer:

Less than 6.0 grams of copper (II) is formed, and some copper chloride is left in the reaction mixture

Explanation:

0.00340239726 ×\(10^{-16}\) is the energy of the photon with that wavelength.

Wavelength is the distance between identical points (adjacent crests) in the adjacent cycles of a waveform signal propagated in space or along a wire.

The energy of the photon with that wavelength:

E = hv

E = hc/λ

where v = c/λ

h = 6.625 x \(10^{-34}\) Js

c = 3 x \(10^8\) m/s

λ = 584 nm. x \(10^{-9}\) m (1 nm =\(10^{-9}\) m)

Putting the values in the equation:

E = (6.625 x \(10^{-34}\) Js x 3 x \(10^{8}\) m/s) ÷584 x \(10^{-9}\) m

E =  1.9875×\(10^{-25}\) ÷ 584 x \(10^{-9}\)

E = 0.00340239726 ×\(10^{-16}\)

Hence,  0.00340239726 ×\(10^{-16}\) is the energy of the photon with that wavelength.

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Answer:

2D 3D

Explanation:

can I get the options for number 4 and I’m not totally sure for number one but I would say shorter,longer

The equilibrium concentrations for the given reaction at a certain temperature will be 100.

During a reversible chemical process, chemical equilibrium is the state where there would be no net change in the number of reactants as well as products.

The reaction is the process in which by the combination of more than one element new kind of element will be formed.

Given data:

The given reaction is \(N_{2} (g) + O_{2} (g)\)  → \(2NO(g)\)

The equilibrium constant (K) = \([NO]^{2} /[N_{2}][O_{2}]\)

Put the value of the given data in the above equation.

K =  \(=[0.002 M]^{2} / [0.65M][0.45M]\\=[4*10^{-6} ]/ [0.2950]\\= [4*10^{-6} ] / 2950*10^{-4}\\= 1.35 * 10^{-5}\)

Therefore, the equilibrium constant will be 1.35 × \(10^{-5}\)

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Answer:

Rainfall can affect influent flow rate and compositions of wastewater, and thus further affect wastewater treatment performance and the effluent quality.

Explanation:

Answer:

Explanation:

The term change of phase means the same thing as the term change of state. ... i.e. during phase change, the energy supplied is used only to separate the molecules ; no part of it is used to increase the kinetic energy of the molecules. So its temperature will not rise, since kinetic energy of molecules remains the same.

A cup of hot coffee initially at 95ºc cools to 80ºc in 5 min while sitting in a room of temperature 21ºc. using just newton’s law of cooling, determine when the temperature of the coffee will be a nice 50ºc

In 10 minutes the hot coffee will attain the temperature of 50 degrees Celsius.

Initially the hot cup of coffee at the temperature of 95 degrees Celsius but after 5 minutes its temperature decreases from 95 to 85 degrees Celsius which is 15 degrees Celsius decrease so in other 5 minutes, the temperature decreases to 65 degrees Celsius.

Again after 5 minutes the temperature will further decrease finally the cup of coffee attain the temperature of 50 degrees Celsius so we can conclude that in 10 minutes the hot coffee will gain the 50 degrees Celsius temperature.

According to Newton's Law of cooling, the charge of loss of heat from a body is immediately proportional to the difference in the temperature of the frame and its surroundings.

The price, wherein a frame that is uncovered, modifications the temperature thru radiation is about proportional to the difference among the item's temperature and its environment, and the furnished difference is low. that is called Newton's law of cooling.

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Answer:

Atom

Explanation:

An atom is the smallest unit which represents the an element.

It retains the chemical properties of an element.

Answer:

neutral

Explanation:

When the surface water is warm, the storm sucks up heat energy from the water, just like a straw sucks up a liquid. This creates moisture in the air. ... And the warmer the water, the more moisture is in the air. And that could mean bigger and stronger hurricanes.

In some ocean basins, the intensification of hurricanes over time has been linked to rising ocean temperatures. Since 1970, sea surface temperatures worldwide have warmed by about an average of 0.1°C per decade. This warming is especially pronounced in the North Atlantic basin.

Stay seggsy.

Choose the products that complete the reaction. The chemical equation may not be balanced.

NaHCO3 + HC2H3O2

Answer: NaC2H3O2 + CO2 + H2O

Answer:

C4H6

Explanation:

See attached table

Convert each of the masses into moles by dividing the mass by the molar mass of that element.  That yields 3.83 moles of C and 6 moles of O.  I rounded up the C to 4 moles to result in an empirical formula of C4H6

F-   is the most likely ligand to form a high spin octahedral complex with cobalt(II) ion.

In coordination chemistry, a ligand is an ion or molecule that binds to a central metal atom to form a coordination complex. The bonding with the metal generally involves formal donation of one or more of the ligand's electron pairs, often through Lewis bases. F-   is the most likely ligand to form a high spin octahedral complex with cobalt(II) ion. It is so because it is weak field ligand. Weak field ligands are ones that produce small splitting between the d orbitals and form high spin complexes.

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All the chemical equations of this question has been balanced for the  given observed reactions.

Equal numbers and types of each atom appear on both sides of balanced chemical equations. A balanced equation must have coefficients that are the simplest whole number ratio. Chemical reactions always conserve mass.

A. Ba(NO₃)₂+ Na₂CO₃ → BaCO₃ + 2NaNO₃

B. Ba₂⁺ + 2NO₃⁻ + 2Na⁺ +CO₃²⁻→ BaCO₃(s) +2Na⁺ +2NO³⁻

C. Net ionic equation-

   Ba²⁺(aq) + CO₃²⁻(aq)→ BaCO₃(s)

D. overall reaction-

   3Ba(NO₃)₂(aq) + 2Na₃PO₄→ Ba₃(PO₄)₂(s) + 6NaNO₃(aq)

E. Ionic equation-

   Ba(NO₃)₂(aq) + 2NaCl(aq)→ BaCl₂(aq) + 2NaNO₃(aq)

  ∴ No reaction

F- Ba(NO₃)₂(aq) + 2NaOH(aq) → Ba(OH)₂(aq) +2NaNO₃(aq)

 ∴No net ionic equation.

Thus, all equations are balanced above.

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ΔH(fusion) is not required to determine the amount of heat that must be added for this change to occur.

What is specific heat and enthalpy of phase transition?

The energy required in the form of heat to increase temperature by one-degree Celsius  and enthalpy of phase transition defined as heat change at constant pressure and temperature for per mole substance from one phase to another.

In between 50 to 100 °C water remains in same phase it gains heat so calculate it using specific heat of liquid.

b) At 100°C it absorbs heat and transfer into vapor phase and require ΔH(vaporization).

c) In between 100°C to 150°C in vapor phase specific heat of gas is required.

But no requirement of ΔH (fusion).

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Agarose gel electrophoresis differs from SDS-PAGE in all of the following ways except  loading buffer which generally gives the sample a uniform negative charge. As a result, choice A is the best one.

By determining their size and charge, small molecules (DNA, RNA, protein, etc.) or their fragments can be separated and analysed using the gel electrophoresis technique. Biochemistry as well as molecular biology use it to distinguish between a mixture of fragments of DNA and RNA by length, to determine the size of DNA as well as RNA fragments, or to separate amino acids by charge. Clinical chemistry uses it to separate amino acids by charge and size (IEF agarose, basically size independent). Its loading buffer typically imparts a homogeneous negative charge to the sample.

Therefore, the correct option is option A.

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Answer: 112.2 g

Explanation:

The atomic mass of silicon is 32.065 g/mol, so 3.5 moles have a mass of (3.5)(32.065) grams, or about 112.2 g

Aluminum sulfate can be used in water purification  by weighing some measurement. The measurement to that is \(342.3\)amu.

Formula weight = 2×27+3×(32.1+4×16)

        \(\mathrm{Al}_2\left(\mathrm{SO}_4\right)_3 &=\) 342.30amu

As a result, aluminum sulfate can be used to purify water. The formula weight for this salt is 34.30amu. The final answer is (a).

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Answer: Diploid Cells (?)

Explanation: