Rank the following 0.100 M solutions in order of increasing H3O + concentration:

HF, Ka = 6.3 * 10-4; HCN, Ka = 6.2 * 10-10; HOCl, Ka = 4.0 * 10-8

HF < HCN < HOCl

HCN < HOCl < HF

HOCl < HCN < HF

HF < HOCl < HCN

HOCl < HF < HCN

Question

Gavin Lynn

Chemistry

24 May, 10:29

Rank the following 0.100 M solutions in order of increasing H3O + concentration:

HF, Ka = 6.3 * 10-4; HCN, Ka = 6.2 * 10-10; HOCl, Ka = 4.0 * 10-8

HF < HCN < HOCl

HCN < HOCl < HF

HOCl < HCN < HF

HF < HOCl < HCN

HOCl < HF < HCN

+2

Answers (1)

Know the Answer?

Sammy Hurst · Answer 1

HCN < HOCl < HF

Explanation:

The larger the Kₐ value, the stronger the acid.

6.2 * 10⁻¹⁰ < 4.0 * 10⁻⁸ < 6.3 * 10⁻⁴

HCN < HOCl < HF

weakest stronger strongest

Rank the following 0.100 M solutions in order of increasing H3O + concentration:HF, Ka = 6.3 * 10-4; HCN, Ka = 6.2 * 10-10; HOCl, Ka = 4.0 * 10-8HF < HCN < HOClHCN < HOCl < HFHOCl < HCN < HFHF < HOCl < HCNHOCl < HF < HCN

Rank the following 0.100 M solutions in order of increasing H3O + concentration:

HF, Ka = 6.3 * 10-4; HCN, Ka = 6.2 * 10-10; HOCl, Ka = 4.0 * 10-8

HF < HCN < HOCl

HCN < HOCl < HF

HOCl < HCN < HF

HF < HOCl < HCN

HOCl < HF < HCN