What Is the Hydronium-Ion Concentration at Equilibrium in a 0

question 18

Multiple Choice

What is the hydronium-ion concentration at equilibrium in a 0.10 M solution of aniline (C₆H₅NH₂,K_b = 4.2 × 10^-10) at 25^oC?

• A)1.0 × 10^-13 M
• B)1.0 × 10^-1 M
• C)1.5 × 10^-9 M
• D)6.5 × 10^-6 M
• E)6.5 × 10^-5 M

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