Gce Model Questions Vol1 2017 Chemistry Question 9

Practice essay / theory question 9 from the 2017 Gce Model Questions Vol1 Chemistry examination. This question covers Redox Reactions, Acidic medium .

Gce Model Questions Vol1 2017 Chemistry Essay / Theory
Topics: Redox Reactions Acidic medium
Question 9 GCE_MODEL_QUESTIONS_VOL1 • 2017 • CHEMISTRY • essay

A solution containing potassium permanganate (KMnO₄) and oxalic acid (H₂C₂O₄) is acidified with sulfuric acid and heated.

Question Parts

( a )
Write the balanced overall redox equation for the reaction in acidic medium.
( b )
From the balanced equation, calculate the volume of CO₂ gas (at STP) produced when 5.00 g of oxalic acid reacts completely.
( c )
Explain why sulfuric acid is required in this reaction and describe the change in oxidation state of manganese during the process.

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About This Question

This is Gce Model Questions Vol1 2017 Chemistry Question 9. It is one of the essay questions from the 2017 Gce Model Questions Vol1 Chemistry examination.

The question covers Redox Reactions, Acidic medium .

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