Electrolysis of water

Electrolysis of water - Drew Rasmussen Chemistry 112 Lab...

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Drew Rasmussen Chemistry 112 Lab Kate Truhler April 28, 2011 The Electrolysis of Water – Report Form A. Research Questions: a. What are the half reactions for the electrolysis of water? b. How many electrons are transferred per mole of water in its electrolysis? B. Observations and Results: a. See notebook for drawings and further more detailed observations. b. Copper wire tube has 0.1mL of air bubbles to begin with c. K 2 SO 4 is clear and has no apparent smell d. The universal indicator is forest green e. Start time was 11:21 and 0 seconds f. Initial current (i) = 0.12 Amps g. Right tube is bubbling more h. Right tube has an apparent whitish / blue color i. Left tube has less air bubbles and is yellowish like hydrated pee!!! j. 8 minutes in and the copper wire tube has approx. 8mL of H 2 gas k. Stopped at 11:51 and 45s k.i. Approx. 32.6mL when stopped (copper tube) l. Once settled the tube had about 32.75mL of gas l.i. Tube has an apparent blue tip with it being obvious at the meniscus
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This note was uploaded on 01/18/2012 for the course CHEM 112 taught by Professor Lemaster during the Spring '08 term at Boise State.

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Electrolysis of water - Drew Rasmussen Chemistry 112 Lab...

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