本题目来源于试卷: Tools & Inquiries G.1 Experimental Techniques，类别为 IB化学
[问答题]
Solid sodium carbonate reacts with excess nitu bh4 +*b.odpnric acid of 2j,j: *spruay 0.10 mol dm${-1}$ as shown in the equation below:
$Na_2CO_3$(s)+2$HNO_3$→$H_2O$(l)+$CO_2$(g)+2$NaNO_3$(aq)
1.State a method to measure the rate of reaction other than measuring the volume of gas collected.
2.1.Sketch a graph to show the volume of gas produced over time.
2.2.Explain the shape of your graph using the collision theory.
3.On the same graph as in part(bi), sketch another line to show the volume of gas collected over time at a concentration of 0.05 mol dm$^{-1}$ of nitric acid and label it as X.
4.Suggest and describe a factor other than the concentration that can affect the rate of the above reaction.
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