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156 solutions

Weak Acids

Q. 4) Calculate [H+] of a 0.135 M HOCl solution at 25°C

Solved • Nov 12, 2019

Weak Acids

Q. Determine the pH of a 0.62 M NH4NO3 solution at 25 degrees C. The Kb for NH3 is 1.76x10^-5. a) 11.52 b) 9.45 c) 2.48 d) 9.27 e) 4.73

Solved • Nov 8, 2019

Weak Acids

Q. Calculate the pH of a 1.60 M CH3NH3Cl solution. Kb for methylamine, CH3NH2, is 3.4x10^-4 M. a) 5.18 b) 8.82 c) 1.61 d) 12.39

Solved • Nov 8, 2019

Weak Acids

Q. A 9.0x10^-2 M solution of a monoprotic acid has a percent dissociation of 0.60%. Determine the acid ionization constant (Ka) for the acid. Express your answer using two significant figures.

Solved • Nov 8, 2019

Weak Acids

Q. Find the percent ionization of a 0.337 M HF solution. The Ka for HF is 3.5x10^-4. a) 1.1% b) 4.7% c) 3.2% d) 1.2x10^-2% e) 3.5x10^-2%

Solved • Nov 8, 2019

Weak Acids

Q. Determine the Ka of an acid whose 0.294 M solution has a pH of 2.80. a) 1.2x10^-5 b) 4.9x10^-7 c) 5.4x10^-3 d) 8.5x10^-6 e) 2.7

Solved • Nov 8, 2019

Weak Acids

Q. A 0.175 M weak acid solution has a pH of 3.25. Find Ka for the acid. Express your answer to two significant figures.

Solved • Nov 8, 2019