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What Is the Hydronium-Ion Concentration of a 0

Question 50

Multiple Choice

What is the hydronium-ion concentration of a 0.30 M solution of HCN (Ka = 4.9 × 10-10) at 25°C?


A) 1.7 × 10-4 M
B) 3.4 × 10-6 M
C) 2.2 × 10-6 M
D) 1.2 × 10-5 M
E) 4.0 × 10-5 M

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