1) For the reaction of the ammonium ion with nitrous acid, the net reaction is N
ID: 514178 • Letter: 1
Question
1) For the reaction of the ammonium ion with nitrous acid, the net reaction is NH4+(aq) + HNO2(aq) N2(g) + 2H2O(l) + H+(aq) If the initial concentration of nitrous acid is 1.00 M and, after 42.6 s has elapsed, the concentration of nitrous acid has fallen to 0.88 M, what is the average rate of the reaction over this time interval? a) 0.021 M/s b) –0.021 M/s c) –0.0028 M/s d) 0.044 M/s e) 0.0028 M/s explain answer
2) For the hypothetical second-order reaction A products, k = 0.189 M-1 s-1. If the initial concentration of A is 0.489 M, how long would it take for A to be 20.9% consumed?
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