Author Question: What is the pH of an aqueous solution prepared by mixing 50.00 mL of 0.10 mol L-1 methylamine, ... (Read 95 times)

mikaylakyoung · **on:** Jul 8, 2021

Question 1

What is the pH of an aqueous solution prepared by mixing 50.00 mL of 0.10 mol L^-1 NH₃ with 5.00 mL of 0.10 mol L^-1 NH₄Cl? Assume that the volume of the solutions are additive and that K_b = 1.8 × 10^-5for NH₃.
◦ 8.25
◦ 9.28
◦ 10.26
◦ 11.13

Question 2

What is the pH of an aqueous solution prepared by mixing 50.00 mL of 0.10 mol L^-1 methylamine, CH₃NH₂, with 20.00 mL of 0.10 mol L^-1 methylammonium chloride, CH₃NH₃Cl? Assume that the volume of the solutions are additive and that K_b = 3.70 × 10^-4 for methylamine.
◦ 10.17
◦ 10.57
◦ 10.97
◦ 11.78

janeli · **Reply #1 on:** Jul 8, 2021

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