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rate of reaction

Submitted by Anonymous (not verified) on Fri, 11/05/2010 - 18:40

1. For the reaction 2A+ 2B -> 3C, it was found that the rate of disappearance of B was 0.3 mol L^-1 s^-1. What was the rate of disappearance of A and the rate of appearance of C?

2. At a certain temperature, the rate of decomposition of N2O5, 2N2O5-> 4NO2 +O2, is 2.5 x 10^-6 mol L^-1 s^-1. How fast are NO2 and O2 being formed?

Please help me, Thankyou!


For every 2 moles of B that disappear you get 3 mole of C
So if rate of disappearance of B was 0.3 mol L^-1 s^-1, rate of appearance of C will be 1.5 x 0.3 mol L^-1 s^-1 as for each mole of B that disappears you get 1.5 moleof C
I assume that the rate of disappearance of A will be the same as for B

2. Based on the balanced equation, the rate of appearance of NO2 is twice that for the rate of disappearance of N2O5 and that for O2 will be half of the rate of disappearance of N2O5