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Question
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 concentration of A2 after 30 seconds?
A) 5.00 10-4 M
B) 5.25 10-4 M
C) 5.50 10-4 M
D) 6.00 10-4 M
Answer
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