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Calculations involving masses

Calculations involving masses

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Question 71

In another experiment, 0.4 mol of hydrochloric acid, HCl\text{HCl}HCl, was mixed with 0.3 mol of zinc, Zn\text{Zn}Zn.

Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g) \text{Zn(s)} + 2\text{HCl(aq)} \rightarrow \text{ZnCl}_2\text{(aq)} + \text{H}_2\text{(g)} Zn(s)+2HCl(aq)→ZnCl2​(aq)+H2​(g)

Use the equation to show that, in this experiment, zinc is in excess.

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Calculations involving masses Questions

  1. GCSE
  2. /Chemistry
  3. /Calculations involving masses

258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.

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