lab1 - Dan Breyre Lab 1 Introduction: The purpose of this...

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Dan Breyre Lab 1 Introduction: The purpose of this lab is to create a better understanding of what happens when we combine small amounts of different cations and anions. Through the combination of these solutions, we should then be able to determine which cations and anions are soluble and not and also determine what our unknown substance is. Experimental Procedure: The procedure for this experiment can be found in the laboratory manual on page 15-18. Data and Observations:
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In order to determine the unknown (unknown #7) halogen first the substance will be mixed with 1 M K 2 CrO 4 and 1 M HC 2 H 3 O 2 . If it reacts then it will be tested against .25 M (NH 4 ) 2 C 2 O 4 . If a precipitate forms then the substance will be known, if not it will be tested against 1 M of H 2 SO 4 to determine the unknown. In order to determine the unknown alkaline substance first it will mixed with ammonium oxalate. If precipitates form then it will be tested with sulfuric acid. Again if precipitates form if will be mixed with potassium chromate. By the end of this process the metal
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This note was uploaded on 04/09/2008 for the course PHYS 121 taught by Professor Jordan during the Spring '07 term at Rochester.

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lab1 - Dan Breyre Lab 1 Introduction: The purpose of this...

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