(adsbygoogle = window.adsbygoogle || []).push({}); 1) Calculate the pH of a solution prepared by dissolving 0.370 mol of formic acid (HCO2H) and 0.230 mol of sodium formate (NaCO2H) in water sufficient to yield 1.00 L of solution. THe Ka of formic acid is 1.77 x 10^-4.

a) 2.30 b) 2.09 c) 10.46 d)3.54 e) 3.95

2) The solubility of lead (II) chloride (PbCl2) is 1.6 x 10^-2 M. What is the Ksp of PbCl2?

a)1.6 x 10^-2 b) 5.0 x 10^-4 c) 1.6 x 10^-5 d) 4.1 x 10^-6 e) 3.1 x 10^-7

3) What is the molar solubility of barium fluoride (BaF2) in water? The solubility-product constant for BaF2 is 1.7 x 10^ -6 at 25 degrees celcius.

a) 6.5 x 10^-4 b) 5.7 x 10^-7 c) 7.5 x 10^-3 d) 1.2 x 10^-2 e) 1.8 x 10^-3

4) What is the solubility (in M) of PbCl2 in a 0.15 M solution of HCl? The Ksp of PbCl2 is 1.6 x 10^-5.

a) 1.6 x 10^-5 b) 1.1 x 10^-4 c) 1.8 x 10^-4 d) 7.1 x 10^-4 e)2.0 x 10^-3

5) A 7.0 x 10^-3 M aqueous solution of Ca(OH)2 at 25.0 degrees celsius has a pH of____a) 1.4 x 10 ^-2 b) 7.1 x 10^-13 c) 1.85 d) 12.15 e) 11.85

6) The pH of an aqueous solution at 25.0 degrees celsius is 10.66. What is the molarity of H+ in this solution?

a) 4.6 x 10^10 b) 4.6 x 10^4 c) 1.1 x 10^-13 d) 2.2 x 10^-11 e) 3.3

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# Homework Help: Chem Test Review Questions (multiple chice) Need help , please!

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