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Atoms and reactions

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Question 103

Compound Y\textbf{Y}Y is a chloride of phosphorus that is a liquid at room temperature and pressure and has a boiling point of 76∘C76^\circ\text{C}76∘C.

When 0.500 g0.500\text{ g}0.500 g of Y\textbf{Y}Y is heated to 120∘C120^\circ\text{C}120∘C at 1.00×105 Pa1.00 \times 10^5\text{ Pa}1.00×105 Pa, 119 cm3119\text{ cm}^3119 cm3 of gas is produced.

Determine the molecular formula of compound Y\textbf{Y}Y.

Show all your working.

[6]
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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