Author Question: What is the pH of the resulting solution if 45 mL of 0.432 mol L-1 aqueous methylamine, CH3NH2, is ... (Read 119 times)

KimWrice · **on:** Jul 8, 2021

Question 1

What is the pH of the resulting solution if 25.00 mL of 0.10 mol L^-1 aqueous acetic acid is added to 10.00 mL of 0.10 mol L^-1 NaOH(aq)? Assume that the volumes of the solutions are additive. K_a = 1.8 × 10^-5for CH₃COOH

◦ 9.43
◦ 9.08
◦ 4.92
◦ 4.57

Question 2

What is the pH of the resulting solution if 45 mL of 0.432 mol L^-1 aqueous methylamine, CH₃NH₂, is added to 15 mL of 0.234 mol L^-1 HCl(aq)? Assume that the volumes of the solutions are additive. K_a = 2.70 × 10^-11for CH₃NH₃⁺.
◦ 2.77
◦ 4.09
◦ 9.91
◦ 11.23

spencer.martell · **Reply #1 on:** Jul 8, 2021

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