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Quiz for CHM 1046C - Gen Chem with Qual Analysis II with Mellone at Valencia Comm College (VCC)

Quiz Information

Material Type:Quiz 8
Professor:Mellone
Class:CHM 1046C - Gen Chem with Qual Analysis II
Subject:CHM: Chemistry
University:Valencia Community College
Term:Fall 2008
Keywords:
  • Partial Credit
  • Chemical Equation
  • Significant
  • Correct Number
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CHM 1046 Fall, 2008 Quiz 8 Name (print)_________________________ Show your work for complete (and partial) credit. Report your answers to the correct number of significant figures, and use units where appropriate. Kw=10-14 1. What is the pH of 0.15M HCN? For HCN, Ka=4.9x10-10. 2. What is the pH of 0.10M NH3(aq)? Kb for NH3 = 1.8x10-5. 3. A solution of sodium acetate is basic. Write a chemical equation that shows why/how sodium acetate produces a basic solution. 4. What is the pH of 0.10M NaAc? For HAc, Ka = 1.75x10-5. 5. One solution of HCl(aq) has a pH of 2.00. A second HCl(aq) solution has a pH of 3.00. What is the pH of a solution made by mixing 1.00L of each solution? ...
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