[问答题]
Ammonia gas is produced when a fixed volume of 0.1M $NaOH$ was added to $(NH_4)_2SO_4$. The following table tracks the concentration of$NaOH$against time as the reaction progresses.
1.Use the graph below to plot the concentration of $NaOH$against time.
$Time(s)$ | $[NaOH](M)$ |
0 | 0.100 |
50 | 0.082 |
100 | 0.067 |
200 | 0.045 |
400 | 0.020 |
2.Calculate the initial rate of reaction using the graph.
3.Calculate the rate of reaction at the$300^{th}$ second. Compare this value with the value calculated in part (b). Comment on the rate of reaction.
