What is [H+] in mol/L of a solution that is 0.20 M in CH3COONa and 0.10 M in CH3COOH? Ka for CH3COOH = 1.8 $ \times $ 10$-$5

Question

What is [H⁺] in mol/L of a solution that is 0.20 M in CH₃COONa and 0.10 M in CH₃COOH? K_a for CH₃COOH = 1.8 $ \times $ 10^$-$5

3.5 $ \times $ 10^$-$4

1.1 $ \times $ 10^$-$5

1.8 $ \times $ 10^$-$5

9.0 $ \times $ 10^$-$6

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