Ka and Kb Video Lessons

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Problem: Which of the following is the strongest acid?A. HF                             Ka = 6.8 × 10–4B. HClO                         Ka = 3.0 × 10–8C. HNO2                        Ka = 4.5 × 10–4D. HCN                          Ka = 4.9 × 10–10E. CH3OOH                   Ka = 1.8 × 10–5

FREE Expert Solution

We’re being asked to identify which among the given acids is the strongest acid.

Strong acids are considered strong electrolytes. They completely dissociate into ions when dissolved in water. 

Ka represents the acid dissociation constant and it measures the strength of weak acids.

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Problem Details

Which of the following is the strongest acid?

A. HF                             Ka = 6.8 × 10–4

B. HClO                         Ka = 3.0 × 10–8

C. HNO2                        Ka = 4.5 × 10–4

D. HCN                          Ka = 4.9 × 10–10

E. CH3OOH                   Ka = 1.8 × 10–5

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