Which of the following describes the relationship between acid strength and ka value for weak acids?

a. when ka increases, the acid strength decreases

b. when ka increases, the acid strength increases

c. when ka increases, the acid strength decreases

d. when ka increases the acid strength is unchanged

Question

Chemistry

Tyree Sosa

23 June, 00:57

Which of the following describes the relationship between acid strength and ka value for weak acids?

a. when ka increases, the acid strength decreases

b. when ka increases, the acid strength increases

c. when ka increases, the acid strength decreases

d. when ka increases the acid strength is unchanged

+4

Answers (1)

Know the Answer?

Mandy · Answer 1

I think the correct answer would be when ka increases, the acid strength increases. Ka is the product of hydronium ions and the [A-] ions concentration over the acid concentration. Therefore, increasing the the Ka, the numerator in the definition would increase as well which correspondingly increase the strength of the acid.

Which of the following describes the relationship between acid strength and ka value for weak acids?a. when ka increases, the acid strength decreasesb. when ka increases, the acid strength increasesc. when ka increases, the acid strength decreasesd. when ka increases the acid strength is unchanged