Question

1. what is the ph of solution that contains 2 parts acetic acid 3 parts sodium acetate? pk for acetic acid is 4.76. explain.

a. 4.94 b. 4.76 c.4.28 d. 4.58

2. What is the delta g? explain

ATP + water --> ADP +Pi delta g: -31

Glucose + Pi --> glusoce-1-phosphate + water. delta g: 21

a. -52 b. -10 c. 10 d. 52

Answer 1

Ans. #1. Given, concertation of acetic acid, [AH] = 2.00 M        (on relative scale)

                        Concertation of Na-acetate, [A^-] = 3.00 M           (on relative scale)

Now, using HH equation –

So, correct option is – a. 4.96

#2. When two reactions are added to yield an overall coupled reaction, the dG⁰ of the coupled reaction is equal to the sum of dG⁰ of the two individual reactions as shown below-

So, correct option is- b. -10.0