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Leno4ka [110]
3 years ago
5

8. Referring to the metabolic process involving glucose, calculate the maximum number of moles of ATP that can be synthesized fr

om ADP from the breakdown of one mole of glucose. (8 points) C6H12O6 + 6O2 → 6CO2 + 6H2O ΔGº = –2880 kJ/mol ADP + H3PO4 → ATP ΔGº = +31 kJ/mol
Chemistry
1 answer:
stepan [7]3 years ago
5 0

Answer:

93 moles

Explanation:

The breakdown of 1 mole of glucose is shown by the reaction shown below:

C_6H_{12}O_6+6O_2\rightarrow 6CO_2+6H_2O\ \Delta G^0=-2880 kJ/mol

It means that 1 mole of breakdown of glucose produces 2880 kJ of energy.

The reaction of the phosphorylation of ADP to ATP is shown below as:

ADP+H_3PO_4\rightarrow ATP\ \Delta G^0=31 kJ/mol

It means that 1 mole of ADP needs 31 kJ of energy to convert into 1 mole of ATP

Which also means that:

31 kJ of energy is required to form 1 mole of ATP from ADP

1 kJ of energy is required to form \frac {1}{31} mole of ATP from ADP

2880 kJ of energy is required to form \frac {1}{31}\times 2880 mole of ATP from ADP

<u>Thus moles of ATP form ≅ 93 moles</u>

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if 334.6 g of phosphoric acid is reacted with excess potassium hydroxide. the final mass K3PO4 produced is found to be 248g. wha
Orlov [11]

Answer:

                     %age Yield  =  34.21 %

Explanation:

                   The balance chemical equation for the decomposition of KClO₃ is as follow;

                            3 KOH + H₃PO₄ → K₃PO₄ + 3 H₂O

Step 1: Calculate moles of H₃PO₄ as;

Moles = Mass / M/Mass

Moles = 334.6 g / 97.99 g/mol

Moles = 3.414 moles

Step 2: Find moles of K₃PO₄ as;

According to equation,

                 1 moles of H₃PO₄ produces  =  1 moles of K₃PO₄

So,

              3.414 moles of H₃PO₄ will produce  =  X moles of K₃PO₄

Solving for X,

                      X = 1 mol × 3.414 mol / 1 mol

                      X = 3.414 mol of K₃PO₄

Step 3: Calculate Theoretical yield of K₃PO₄ as,

Mass = Moles × M.Mass

Mass = 3.414 mol × 212.26 g/mol

Mass = 724.79 g of K₃PO₄

Also,

%age Yield  =  Actual Yield / Theoretical Yield × 100

%age Yield  =  248 g / 724.79 × 100

%age Yield  =  34.21 %

3 0
3 years ago
In the reaction C + O2 → CO2, 18 g of carbon react with oxygen to produce 72 g of carbon dioxide. What mass of oxygen would be n
melamori03 [73]

Answer:

54 g

Explanation:

Given data:

Mass of carbon = 18 g

Mass of CO₂ = 72 g

Mass of oxygen needed = ?

Solution:

Chemical reaction:

C + O₂     →       CO₂

according to law of conservation mass, mass can neither be created nor destroyed in a chemical equation.

This law was given by French chemist  Antoine Lavoisier in 1789. According to this law mass of reactant and mass of product must be equal, because masses are not created or destroyed in a chemical reaction.

In given photosynthesis reaction:

6CO₂ + 6H₂O + energy → C₆H₁₂O₆ + 6O₂

there are six carbon atoms, eighteen oxygen atoms and twelve hydrogen atoms on the both side of equation so this reaction followed the law of conservation of mass.

In a similar way,

C   +    O₂     →       CO₂

18 g +   X      = 72

X = 72 -18

X = 54 g

Thus, 54 g of O₂ are required.

3 0
3 years ago
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2A(g) + B(l) ⇌ 3C(aq) + D(s)
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Answer:

B

[(0.75)^3(0.25)]÷[(0.50)^2(0.75)]

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8 0
3 years ago
If someone is building a scale model of our solar system which characteristic would be the most difficult to build into the mode
nikitadnepr [17]

Answer:

The composition of the objects because not all the planets have been explored

5 0
3 years ago
Why amino acids are soluble in pH=3 or pH=10 solutions more than it dissolves in pH=7 solutions?
Ray Of Light [21]

Answer:

Solubility is Affected by pH

The pH of an aqueous solution can affect the solubility of the solute. By changing the pH of the solution, you can change the charge state of the solute.

At pH extremes, the amino acid molecules mostly carry a net charge, thus increasing their solubility in polar solvent. At very low or very high pH, the amino acid molecules have increased charge, thus form more salt bonds with water solvent molecules.

An isoelectric point is the pH at which an amino acid exists as its zwitterion. A zwitterion is the dipolar ionic form of an amino acid. ... If the pH is lower (in acidic conditions) than the isoelectric point then the amino acid acts as a base and accepts a proton at the amino group. This gives it a positive change.

An amino acid is usually more soluble in aqueous solvent at pH extremes than it is at a pH near the isolelectric point of the amino acid. (Note that this does not mean that the amino acid is insoluble at a pH near its pI.)

Which of the following statements correctly explains this phenomenon?

(Select all that apply.)

The neutral charge of an amino acid molecule at its isoelectric point will make the molecule hydrophobic.

At pH extremes, the amino acid molecules mostly carry a net charge, thus increasing their solubility in polar solvent.

At very low or very high pH, the amino acid molecules have increased charge, thus form more salt bonds with water solvent molecules.

At pH values far from the isoelectric point, individual amino acid molecules have greater kinetic energy, thus more readily stay in solution.

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8 0
3 years ago
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