Acid Base Chemical Reactions Problem Set

This problem set was developed by S.E. Van Bramer for Chemistry 145 at Widener University.

  1. Titration/acid base problem. 0.4563 g of Mg(OH)2 is weighed out and disolved in 50.00 mL of H2O. This is titrated against a solution of HNO3. The initial volume of the burette is 2.35 ml. The final volume of the burette is 47.98 ml. What can you determine?

  2. A base solution is made by disolving 4.987 g of Potassium Hydroxide in 500.0 ml of water. 36.84 ml of this base solution is used to titrate 25.00 ml of sulfuric acid. Write the total, total ionic, and net ionic equations for these reactions. What can you calculate from this information? What are your results?

  3. A sodium hydroxide solution of unknown concentration is titrated against 0.8765 g KHPh (Potassium acid phalate, a monoprotic acid, MW 204.3 g/mol). 48.6 mL of the sodium hydroxide solution is required to reach the endpoint of the titration. What is the concentration of the unknown sodium hydroxide solution.

  4. This sodium hydroxide solution from above is then used to titrate an unknown nitric acid sample. 25.0 mL of the nitric acid solution is titrated. 32.8 mL of the sodium hydroxide solution is required to reach the endpoint. What is the concentration of the nitric acid solution?

Please send comments or suggestions to svanbram@science.widener.edu

Scott Van Bramer
Department of Chemistry
Widener University
Chester, PA 19013

© copyright 1996, S.E. Van Bramer
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Last Updated: 10/30/02