What is the hydronium-ion concentration of a 0.30 M solution of HCN (K_a = 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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The Answer of What is the hydronium-ion concentration of a 0.30 M solution of HCN (K_a = 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

What Is the Hydronium-Ion Concentration of a 0