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10.1 Qualitative analysis: tests for ions

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Question 10
H

Excess barium chloride solution is added to 25.0 cm3\mathrm{cm^{3}}cm3 of 0.0800 mol dm−3\mathrm{mol\,dm^{-3}}moldm−3 sodium sulfate solution, Na2SO4\mathrm{Na_{2}SO_{4}}Na2​SO4​.

What mass of barium sulfate, BaSO4\mathrm{BaSO_{4}}BaSO4​, is precipitated?

(relative atomic masses: Ba = 137, S = 32, O = 16, Na = 23)

[1]
A

0.284 g

B

0.466 g

C

0.932 g

D

466 g

Markscheme

10.1 Qualitative analysis: tests for ions Questions

  1. GCSE
  2. /Chemistry
  3. /10.1 Qualitative analysis: tests for ions

35 exam-style questions on Edexcel GCSE Chemistry 10.1 Qualitative analysis: tests for ions, covering 10.1.1 Principles of ion tests and flame tests, 10.1.2 Tests for cations and for ammonia, 10.1.3 Tests for anions, 10.1.4 Identification of ions in unknown salts, and 10.1.5 Instrumental methods of analysis. Each one has a worked solution and a mark scheme showing where the marks go.

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