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Monitoring chemical reactions

Monitoring chemical reactions

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Question 25

During a monitoring experiment, a student reacts 2.08 g of barium chloride (BaCl2\text{BaCl}_2BaCl2​) with excess sodium sulfate (Na2SO4\text{Na}_2\text{SO}_4Na2​SO4​) to produce 2.33 g of barium sulfate (BaSO4\text{BaSO}_4BaSO4​) precipitate according to the chemical equation:

BaCl2(aq)+Na2SO4(aq)→BaSO4(s)+2NaCl(aq) \text{BaCl}_2(\text{aq}) + \text{Na}_2\text{SO}_4(\text{aq}) \rightarrow \text{BaSO}_4(\text{s}) + 2\text{NaCl}(\text{aq}) BaCl2​(aq)+Na2​SO4​(aq)→BaSO4​(s)+2NaCl(aq)

How much barium sulfate precipitate will be formed if the student repeats the reaction under identical conditions starting with 0.0520 g of barium chloride?

A

0.0464 g0.0464\text{ g}0.0464 g

B

0.0583 g0.0583\text{ g}0.0583 g

C

0.121 g0.121\text{ g}0.121 g

D

0.583 g0.583\text{ g}0.583 g

Markscheme

Monitoring chemical reactions Questions

  1. GCSE
  2. /Chemistry
  3. /Monitoring chemical reactions

91 exam-style questions on OCR GCSE Chemistry Monitoring chemical reactions. Each one has a worked solution and a mark scheme showing where the marks go.

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