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Whelan Whelan
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8 years ago
A concentration-time study of the gas phase reaction 2 A3 → 3 A2 produced the data in the table below.

   Time (s)   [A3] (M)   [A2] (M)
   0   4.00 × 10-4   0
   10   2.00 × 10-4   3.00 × 10-4
   20   1.00 × 10-4   4.50 × 10-4
   30   5.00 × 10-5   ?

What is the average rate of decomposition of A3 in the time interval 20-30 seconds?
A) 4.00 × 10-4 M/s
B) 3.50 × 10-5 M/s
C) 5.00 × 10-6 M/s
D) 4.00 × 10-6 M/s
Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
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hbutler2hbutler2
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