# Biochemistry

The ΔG°' for the reaction Citrate isocitrate is +6.64 kJmol-1= +1.59 kcalmol-1. The ΔG°' for the reaction Isocitrate α-Ketoglutarate is -267kJmol-1 = -63.9 kcalmol-1 What is the ΔG°' for the conversion of citrate to α-Ketoglutarate? Is that reaction exergonic or endergonic, and why?

Please explain this to me I have no idea how to solve this.

1. 👍 0
2. 👎 0
3. 👁 175
1. I don't know

1. 👍 0
2. 👎 0
posted by Bill
2. it's exergonic, I think because it's breaking down the steps from citrate to alpha-ketoglutarate (being the "first" step). when bonds break, it's releasing energy.

1. 👍 0
2. 👎 0
posted by Hanna

## Similar Questions

1. ### Chemistry

biochemists consider the citric acid cycle to be the central reaction sequence in metabolism. One of the key steps is an oxidation catalyzed by the enzyme isocitrate dehydrogenase and the oxidizing agent NAD+. Under certain

asked by Lety on June 19, 2014
2. ### Chemistry

Calculate value of Ksp for Ca(OH)2 (ΔG∘f(Ca2+)=-553.6 kJmol−1 , ΔG∘f(OH−)=-157.2 kJmol−1 , ΔG∘f(Ca(OH)2)=-898.5 kJmol−1 ).

asked by Ayaka on May 3, 2016
3. ### Chemistry

Given the following information: C(s) à C(g), H = +715 kJmol-1 Cl2(g) à 2Cl(g), H = +242 kJmol-1 C(s) + 2Cl2(g) à CCl4(g), H = -135.5 kJmol-1 Calculate the average bond dissociation enthalpy of a C-Cl bond.

asked by C on May 12, 2016
4. ### math

lithium citrate comes in 300 mg/5ml. the doctor calls and asks you to compound lithium citrate ''light'' (75mg/5ml). How would you dilute the citrate to proper dose?

asked by sara on August 29, 2012
5. ### chem

The daily RNI of calcium for adolescent females is 700 to 1100 mg. A supplement tablet contains 950 mg of calcium citrate. Each grams of calcium citrate contains 5.26 x 10^-3 mol calcium. How many tablets would a 16 year old

asked by christine k on November 17, 2014
6. ### Chem help

An equilibrium reaction which has K1 = 6.5 x 10¯2 at 100oC and has ∆Horxn = -49.5 kJmol¯1. What is the value of K at 250 oC? I can't get the right answer, which is supposed to be 6.68 x 10^-4. How does one do this? Thanks

asked by Duffy on June 7, 2009
7. ### Chemistry

Calculate the enthalpy change of formation for the following reactions using Hess's law, and the enthalpies of formation given in Figure 4: b) MgO +2HCl --> MgCl2 +H2O c)NaOH+ HCl -->NaCl +H20 Figure4: the given enthalpies of

asked by BOB on January 30, 2014
8. ### chemistry

Question is: If you gain your iron from an iron citrate (Fe(C6H7O7)2) supplement, how many grams of iron citrate do you need to take to gain 8.88 mg of iron? I tried setting this problem up, but i don't think i did it right. can

asked by stephanie on March 10, 2007
9. ### Chemistry

The heat of combustion of liquid hexane (C6H14) to carbon dioxide and liquid water at 298 K is -4215 kJmol−1 . Find ΔrU of the reaction.

asked by someone on February 10, 2017
10. ### chemistry

what is the chemical equation for citric acid + sodium hydroxide? I will be happy to critique your thinking . Remember a salt and water will be formed. is it : C6H8O7 + 3NaOH--> NaC6H5O7 + 3H2O ? I would have written citric acid

asked by bob on June 5, 2007

More Similar Questions