Quelpr
4 marksThe Atmosphere

CAPE Chemistry Unit 2 · 2005 · Paper 2 · Question 8(b)(i)

Use of CaCO3 scrubbers to capture SO2 emissions.

Write an equation for the reaction between CaCO3 and SO2, and explain the underlying principle of the action of the carbonate scrubber.

The mark scheme is shown once you've answered.

Practise this question

Other parts of this question

  1. 8(a)(i)Describe the Contact Process for the manufacture of sulphuric acid, including the raw material sources and the chemistry of the process.[8 marks]
  2. 8(a)(ii)Explain how sulphur dioxide (SO2) modifies the atmosphere.[2 marks]
  3. 8(b)(ii)Calculate the mass of CaCO3, in kg, needed in a slurry to extract the SO2 present in 10 m3 of industrial waste gases at r.t.p., if SO2 comprises 10% of this…[6 marks]

More practice: the rest of this paper · more The Atmosphere questions · all CAPE Chemistry Unit 2 past papers