Author Question: What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.050 M ... (Read 75 times)

Yolanda · **on:** Feb 15, 2020

Question 1

What is the hydronium ion concentration in a solution prepared by mixing 50.00 mL of 0.10 M HCN with 50.00 mL of

NaCN? Assume that the volumes of the solutions are additive and that Ka = 4.9 × 10-10 for HCN.
◦ 9.8 × 10-10 M
◦ 7.0 × 10-6 M
◦ 4.9 × 10-10 M
◦ 2.4 × 10-10 M

Question 2

What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M CH3CO2H with 25.00 mL of 0.050 M CH3CO2Na? Assume that the volume of the solutions are additive and that Ka = 1.8 × 10-5 for CH3CO2H.
◦ 2.87
◦ 4.74
◦ 4.44
◦ 5.05

covalentbond · **Reply #1 on:** Feb 15, 2020

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