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Unformatted text preview: Uyen Nguyen Acid-Base Properties of Salt March 11, 2008 Chem 002, Section 005 Introduction: In this laboratory experiment, students were asked to test the pH of different types of salts that dissolved in room-temperature water. The purpose of this experiment is to introduce the concept of hydrolysis and examine the acid-base properties of a variety of salts, such as NaCl, NaCH 3 COO, Cu(NO 3 ) 2 x 2.5H 2 O, NH 4 Cl, KAI(SO 4 ) 2 x 12 H 2 O, and Na 2 CO 3 . Experimental Procedure: Materials: Distilled water 125 mL Erlenmeyer Flask Hot plate Gloves Glass slide 8.0 x 10-4 moles of: NaCl, NaCH 3 COO, Cu(NO 3 ) 2 x 2.5H 2 O, NH 4 Cl, KAI(SO 4 ) 2 x 12 H 2 O, and Na 2 CO 3 . Graduated pipet 6 test tube Parafilm pH meter Procedures: 1. Put 75mL of distilled water into a 125mL Erlenmeyer flask and heat it to boiling for about 5 minutes. Place a glass slide over it while it is cooling....
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This note was uploaded on 02/27/2010 for the course CHEM 1132 taught by Professor Cole/clark during the Spring '08 term at UCM.
- Spring '08