postlab for lab 1

postlab for lab 1 - (10 points)? 3. In the waste disposal...

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Chem 116, Experiment #1: Briggs Rauscher Oscillating Reaction – Making Solutions Name:________________________ Date:__________ Score:_______ TA:______________________ Room: _________ Section:__________ 1. You are given a commercially available 75% (w/v) hydrogen peroxide solution and are told to make 100mL of a 4M solution from it. How many mL of the original solution do you need to use? Show all calculations for full credit (10 points). 2. Of six sisters, Sarah is older than Julie and Maggie. Maggie is older than Paula. Ann is younger than Julie, but older than Paula. Ann is younger than Maggie. Sarah is younger than Liz. Who was born second
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Unformatted text preview: (10 points)? 3. In the waste disposal portion of this procedure, why were you cautioned to add sodium thiosulfate crystals slowly to the waste products(2 points), and why did you have to make sure that the final waste product had a pH of between 5-8 (10 points)? 4. How much solid manganese sulfate monohydrate would you start with to make 100mL of a 0.2M solution? Show all calculations for full credit (10 points). 5. If your reaction did not work as predicted, explain what could have been the cause of the error (10 points)?...
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