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Calculations involving masses

Calculations involving masses

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Question 62

Magnesium carbonate decomposes on heating to form magnesium oxide and carbon dioxide gas.

MgCO3(s)→MgO(s)+CO2(g) \text{MgCO}_3(\text{s}) \rightarrow \text{MgO}(\text{s}) + \text{CO}_2(\text{g}) MgCO3​(s)→MgO(s)+CO2​(g)

A student heated 6.500 g of magnesium carbonate strongly in a crucible. After heating, 4.250 g of solid remained in the crucible.

Calculate the mass of carbon dioxide gas that escaped during the reaction.

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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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