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6.3 Interpreting and interacting with earth systems

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Question 28
H

A sample of coal contains 1.5% sulfur by mass.

When the coal burns, all the sulfur reacts to form sulfur dioxide:

S+O2→SO2 \mathrm{S + O_{2} \rightarrow SO_{2}} S+O2​→SO2​

Relative atomic mass (ArA_rAr​): O = 16 S = 32

What mass of sulfur dioxide is made when 1000 tonnes of this coal burn?

[1]
A

7.5 tonnes

B

15 tonnes

C

30 tonnes

D

64 tonnes

Markscheme

6.3 Interpreting and interacting with earth systems Questions

  1. GCSE
  2. /Chemistry
  3. /6.3 Interpreting and interacting with earth systems

109 exam-style questions on OCR GCSE Chemistry 6.3 Interpreting and interacting with earth systems, covering 6.3.1 Formation and evolution of the atmosphere, 6.3.2 The greenhouse effect and climate change, 6.3.3 Sources and problems of atmospheric pollutants, and 6.3.4 Producing potable water. Each one has a worked solution and a mark scheme showing where the marks go.

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