Question

a)What is the percent ionization of a 0.493 M aqueous solution of hydrosulfuric acid? Ka1 = 9.5x10-8; Ka2 = 1x10-19

b)What is the pH of a 0.400 M aqueous solution of NaCH₃COO? K_a (CH₃COOH) = 1.8x10^-5

^c)What is the pH of a 0.437 M aqueous solution of NaHCO₃? K_a1 (H₂CO₃) = 4.2x10^-7 K_a2 (H₂CO₃) = 4.8x10^-11

^d)What is the pH of an aqueous solution made by combining 14.04 mL of a 0.1614 M hydrochloric acid with 35.78 mL of a 0.3478 M solution of ammonia?

^e)What is the pK_a1 of H₂C₂O₄? _____ K_a1 = 6.5x10^-2. Use three digits for your answer.

Answer 1

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