1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
labwork [276]
4 years ago
11

2-phosphoglycerate(2PG) is converted to phosphoenolpyruvate (PEP) by the enzyme enolase. The standard free energy change(deltaGo

’) for this reaction is +1.7 kJ/mol. If the cellular concentrations are 2PG = 0.5 mM and PEP = 0.1 mM, what is the free energy change at 37 oC for the reaction 2PG ↔ PEP
5.8 kJ/mol
-5.8 kJ/mol
+2.4 kJ/mol
-2.4 kJ/mol
-4146.4 kJ/mol
+4146.4 kJ/mol
Chemistry
1 answer:
Molodets [167]4 years ago
6 0

Answer: -2.4 kJ/mol

Explanation:

We can relate \Delta G to \Delta G\° according to:

\Delta G=\Delta G\°+RTln(\frac{[products]^n}{[reagents]^m})

Where [products] is the concentration of products, [reagents] is the concentrarion of reagents, n and m are the corresponding stoichiometric coefficients, T is the temperature in Kelvin and R is the gas constant.

Converting 37°C to Kelvin by adding 273, mM to M dividing by 1000, and substituting we get:

\Delta G=1.7\frac{kJ}{mol} +(8.314*10^{-3}\frac{kJ}{K*mol})*(37+273K)*ln(\frac{\frac{0.1}{1000}M}{\frac{0.5}{1000}M})

That gives us a value of -2.4 kJ/mol, the fouth option.

You might be interested in
What does high enthalpies of fusion and vaporizing means​
Kryger [21]

Answer:

The heat of vaporization describes how much energy is needed to separate these bonds. Water has a high heat of vaporization because hydrogen bonds form readily between the oxygen of one molecule and the hydrogens of other molecules. These bonds hold the molecules together.

Explanation:

3 0
3 years ago
When an object accelerates, what about the motion changes
Tems11 [23]

Answer:

An object which experiences either a change in the magnitude or the direction of the velocity vector can be said to be accelerating. This explains why an object moving in a circle at constant speed can be said to accelerate - the direction of the velocity changes.

Explanation:

6 0
3 years ago
The component of solution present in smaller quantity is called
vampirchik [111]
Answer:
A solute

Explanation:
5 0
3 years ago
Read 2 more answers
Explain how acids and bases directly or indirectly affect the hydrogen ion concentration of a solution.
ehidna [41]

By taking hydrogen ions, certain bases directly lower the H+ than OH- concentration. Other bases break down to create hydroxide ions, which indirectly lowers the H+ concentration.

<h3>What is the difference between acid and base?</h3>

H+ ion concentration is raised by an acid. A base is a chemical that, in an aqueous solution, produces hydroxide (OH-) ions, gives electrons, and receives protons. A donor of protons is an acid. A proton can enter a base. When dissolved in water, an acidic chemical compound produces a solution that has more H+ ion activity than clean water. A base is an aqueous material that releases hydroxide (OH-) ions, receives protons, or contributes electrons. A donor of protons is an acid. A base is a proton acceptor.

To learn more about acid and base, visit:

brainly.com/question/23687757

#SPJ4

8 0
2 years ago
How many atoms are in 4.5 moles of Al?
stepladder [879]

Explanation:

4.5×6.022×10²³

27.099×10²³

8 0
3 years ago
Other questions:
  • The combustion of magnesium creates so much energy so quickly that it is hard to measure its enthalpy directly using a simple ca
    5·2 answers
  • How many valence electrons occupy sigma and pi bond orbitals in anthracene?
    10·1 answer
  • What is the oxidation state of each element in the compound CaSO4? Include + or - in your answers as appropriate.
    9·1 answer
  • What name should be used for the ionic compound Lil?
    6·2 answers
  • Write the name of the following compound:
    6·2 answers
  • A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume? Solution A: 1.31% (m
    12·2 answers
  • How do i delete this question it was a test
    11·1 answer
  • You mix 15g of water with 10 grams of sodium chloride. After the reaction occurs, how
    8·1 answer
  • Which option is a microscopic property that helps determine whether or not two substances will dissolve with each other?.
    11·1 answer
  • Why is it important to blow out the flame before the methanol is completely consumed?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!