(a) Is an aqueous solution of LiHSO4 acidic, basic, or neutral? (b) Write the net ionic...

Question

Question

(a)

Is an aqueous solution of LiHSO₄ acidic, basic, or neutral?

(b)

Write the net ionic reaction that occurs between LiHSO₄ and water. (Omit states-of-matter from your answer.)

(c)

Calculate the pH of a 0.109 M solution of LiHSO₄.

science chemistry

Answer 1

Answer #1

(a) Acidic

Explanation: LiHSO₄ still has one replaceable hydrogen.

(b) LiHSO₄(aq) + H₂O(l) ----> LiOH(aq) + H₂SO₄(aq)

(c) pKa of HSO₄^- = 1.921

Now, pH = 1/2 (pKa - Log[NaHSO4]

i.e. pH = 1/2 {1.921 - Log(0.109)}

i.e. pH = 1/2 {1.921 - (-0.963)}

Therefore, pH = 1.442

Answer 2

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