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August 21, 2014

Posts by wite2khin


Total # Posts: 2

chemistry
Which solution would show the GREATEST change in pH on the addition of 10.0 mL of 1.0 M NaOH to 1.0 L of each of the following solutions? a. 0.50 M CH3COOH + 0.50 M NaCH3COO. b. 0.10 M CH3COOH + 0.10 M NaCH3COO. c. 0.50 M CH3COOH. d. 0.10 M CH3COOH. e. 0.50 M NaCH3COO. 4. (...
May 13, 2010

Chemistry
0.10 M solution of a weak monoprotic acid has a hydronium-ion concentration of 5.0 * 10^-4 M. What is the equilibrium constant, Ka, for this acid? a. 5.0 *10^-2 b. 5.0 * 10^-3 c. 2.5 * 10^-4 d. 2.5 * 10^-5 e. 2.5 * 10^-6 2. (Points: 1) What is the carbonate-ion, CO3^-2, ...
May 13, 2010

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