When 40 grams of annonium nitrate is reacted, it forms 14 grams of nitrogen gas and 8 grams of oxygen gas. How much water will be formed?

7

Explanation:

0.001968 M min-1

Explanation:

NH2NO2(aq) --> N2O(g) + H2O(l)

[NH2NO2],M       0.978 0.476 0.232    0.113

time, min              0          255     510      765

The average rate of disappearance over the time period form t = 0 min to t = 255 min is given as;

Average rate = Change in concentration / time taken

Change in concentration = Final Concentration - Initial concentration

Change = 0.476 - 0.978 = 0.502

time taken = 255min - 0min = 255 min

Average rate = 0.502 / 255 = 0.001968 M min-1