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Rates of reaction

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Question 4

Zinc reacts with dilute sulfuric acid to produce zinc sulfate and hydrogen gas.

Zn(s)+H2SO4(aq)→ZnSO4(aq)+H2(g) \text{Zn}(\text{s}) + \text{H}_2\text{SO}_{4}(\text{aq}) \rightarrow \text{ZnSO}_{4}(\text{aq}) + \text{H}_2(\text{g}) Zn(s)+H2​SO4​(aq)→ZnSO4​(aq)+H2​(g)

A student wanted to measure the volume of hydrogen gas produced in three minutes. The student suggested that this could be done by counting the number of bubbles formed. However, the bubbles are produced too quickly to count accurately.

Figure 1 shows a conical flask in which the zinc and dilute sulfuric acid are reacting.

Figure 1: Conical flask containing zinc and dilute sulfuric acid

Describe how the apparatus in Figure 1 can be completed to collect and measure the volume of gas produced accurately.

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