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4 marksMole Concept

CSEC Chemistry · January 2015 · Paper 2 · Question 5(a)(ii)

The acid anhydride of sulfuric acid is produced as an intermediate product in the manufacture of sulfuric acid from sulfur.

Using balanced chemical equations, with state symbols, explain how the anhydride is converted to sulfuric acid in the manufacturing process.

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Other parts of this question

  1. 5(a)(i)State the name of the anhydride and describe how it is produced. (The conditions for the reactions are necessary but there is no need to write the equations.)[5 marks]
  2. 5(a)(iii)Suggest why the anhydride is NOT directly added to water to produce sulfuric acid.[2 marks]
  3. 5(b)(i)Suggest TWO reasons why the alloy, stainless steel, is preferred to pure iron when making cooking utensils.[2 marks]
  4. 5(b)(ii)In humans, iron is found in haemoglobin which is responsible for the transfer of oxygen throughout the body. Suggest how a lack of iron in the human diet could…[2 marks]

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