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Atoms and reactions

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Question 35

An environmental monitoring station detects an unknown volatile pollutant in the atmosphere. A single molecule of this substance is determined to have a mass of 1.33 × 10-22 g.

What is a possible molecular formula of this pollutant?

(Avogadro's constant L=6.02×1023 mol−1L = 6.02 \times 10^{23}\text{ mol}^{-1}L=6.02×1023 mol−1)

A

SO2\text{SO}_2SO2​

B

CS2\text{CS}_2CS2​

C

SO3\text{SO}_3SO3​

D

CH2Cl2\text{CH}_2\text{Cl}_2CH2​Cl2​

Markscheme

Atoms and reactions Questions

  1. A Level
  2. /Chemistry
  3. /Atoms and reactions

199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.

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