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Use the following data to answer Questions 25 and 26:    A general reaction written as...

Use the following data to answer Questions 25 and 26:

   A general reaction written as A + 2B ® C + 2D is studied and yields the following data:

[A]0

[B]0

Initial D[C]/Dt

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

25. What is the numerical value of the rate constant?
26. Determine the initial rate of B consumption (D[B]/Dt) for the first trial?

27. For a first order reaction with a rate constant k = 3.13 x 102 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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