A general reaction written as A + 2B C + 2D is studied and yields the
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A general reaction written as A + 2B ® C + 2D is studied and yields the following data:
| [A] 0 | [B] 0 | Initial D[C]/D t | |
| 0.150 M | 0.150 M | 8.00 ´ 10 –3 mol/L·s | |
| 0.150 M | 0.300 M | 1.60 ´ 10 –2 mol/L·s | |
| | 0.300 M | 0.150 M | 3.20 ´ 10 –2 mol/L·s |
| | | | |
1. What is the numerical value of the rate constant?
2. Determine the initial rate of B consumption (D[B]/D t ) for the first trial?
3. For a first order reaction with a rate constant k = 3.13 x 10 2 s -1 , how long does it take for the concentration of the only reactant to become 40% of the original amount?
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