What is the hydronium-ion concentration of a 0.25 M solution of HCN (K_a = 4.9 × 10^-10)at 25°C? A) 1.6 × 10^-4 M B) 3.3 × 10^-6 M C) 2.1 × 10^-6 M D) 1.1 × 10^-5 M E) 4.4 × 10^-5 M

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The Answer of What is the hydronium-ion concentration of a 0.25 M solution of HCN (K_a = 4.9 × 10^-10)at 25°C? A) 1.6 × 10^-4 M B) 3.3 × 10^-6 M C) 2.1 × 10^-6 M D) 1.1 × 10^-5 M E) 4.4 × 10^-5 M

What Is the Hydronium-Ion Concentration of a 0