Skip to content
Login Register

Practice question

MCQ

Question

A weak acid HX ( Ka = 2.0 × 10⁻⁵ ) is mixed with 0.06 M NaX in a 1:2 volume ratio (acid:salt). If [HX] = 0.04 M after mixing, what is the pH?

Options

Choose one · Correct answer highlighted

Explanation

Total volume = 3V, [X-] = (0.06 × 2V/3V) = 0.04 M , pKa = 4.7 , pH = 4.7 + log (0.04/0.04) = 4.7 .

Discussion

Comments

0 comments

No comments yet. Be the first to start the discussion.

Related blogs

Guides and insights connected to this topic