E4-Bleach Prelab - Identify the reducing and oxidizing...

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EXPERIMENT 4 Sodium Hypochlorite in Bleach Write the answers to these pre-laboratory questions in your lab notebook. Answers to these questions are due at the beginning of your lab section during the week of September 27–October 1. Pre-laboratory Questions: 1. Write the experiment title and purpose in your lab notebook. 2. Look up the MSDS for sodium hypochlorite. What should you do if some bleach solution spills on your hands? 3. In reaction (2) what is oxidized and what is reduced? Identify the reducing and oxidizing agents. 4. In reaction (3) what is oxidized and what is reduced?
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Unformatted text preview: Identify the reducing and oxidizing agents. 5. Explain the purpose of starch in this experiment. 6. (a) Using a volumetric flask, a student makes 500.0 ml of Ca(NO 3 ) 2 solution by dissolving 59.47 grams of Ca(NO 3 ) 2 in distilled water. Calculate the molarity of Ca(NO 3 ) 2 in this solution. (b) The student then pipets 10.00 ml of the Ca(NO 3 ) 2 solution made in (a) into a 250.0 ml volumetric flask and adds distilled water to the mark. Calculate the molarity of Ca(NO 3 ) 2 in this diluted solution....
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This note was uploaded on 01/19/2011 for the course CHEM 2007 at Cornell University (Engineering School).

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