Chem+102+Quiz+5a+2010

Chem+102+Quiz+5a+2010 - What is the rate constant What...

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Quiz #5 Name c Lab Section: Show all your work and provide all calculated answers with the correct number of sig. fig. 1. For a reaction prepared using the following table, calculate the initial concentrations for KBrO 3 and KI. (6 pts) FLASK 0.010 M I - 0.0010 M Na 2 S 2 O 3 H2O R 15.0 mL 15.0 mL 10.0 mL BEAKER 0.040 M BrO 3- 0.10 HCl 1% Starch R 20.0 mL 20.0 mL 1.0 mL 2. What is the purpose of the Na 2 S 2 O 3 in the experiment? (2 pt) 3. What is the rate of a reaction? What is its mathematical expression? (1 pt) 4. What is the reaction rate law? Provide the general form for a rate law. (1 pt) 5.

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Unformatted text preview: What is the rate constant? What symbol is used to represent it? (1 pt) Show all your work and provide all calculated answers with the correct number of sig. fig. 3. Determine the rate law for the reaction 2 A + B + C ! 2 D + E using the data below. Also, give the overall order of the reaction and the rate constant. Use 1/time as a substitute for rate. (10 pts) Experiment # [A] (M) [B] (M) [C] (M) Time (s) Rate v(1/s) 1 0.10 0.10 0.20 93 2 0.10 0.20 0.10 85 3 0.20 0.10 0.10 47 4 0.10 0.10 0.10 182 Rate Law Expression: Overall Order of Reaction = k =...
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Chem+102+Quiz+5a+2010 - What is the rate constant What...

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