Question

What is the degree of dissociation for a substance if out of a total of 0.1 mol, 0.0725 mol dissociated?

a) 0.0725
b) 0.275
c) 0.725
d) 0.925

Answer 1

The degree of dissociation for the substance is 0.725, or 72.5%, which is calculated by dividing the amount dissociated (0.0725 mol) by the total amount (0.1 mol).

Step-by-step explanation:

The degree of dissociation for a substance is calculated by the ratio of the amount of substance that has dissociated to the total amount of substance before dissociation. If out of a total of 0.1 mol, 0.0725 mol dissociated, then the degree of dissociation can be calculated as 0.0725 mol (dissociated) / 0.1 mol (initial) = 0.725 or 72.5%.

Therefore, the correct answer is (c) 0.725.