Question

Consider the reaction

2H3PO4→P2O5+3H2O

Determine the average rate of decomposition of H3PO4 between 10.0 and 40.0s.

Time (s)	0	10.0	20.0	30.0	40.0	50.0
[P2O5] (M)	0	1.90×10−3	4.90×10−3	6.70×10−3	7.90×10−3	8.50×10−3

Part B

Consider the reaction

5Br−(aq)+BrO−3(aq)+6H+(aq)→3Br2(aq)+3H2O(l)

The average rate of consumption of Br− is 2.06×10^−4M/s over the first two minutes. What is the average rate of formation of Br2 during the same time interval?