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Edexcel IAL Chemistry 3.P14 Health, safety and risk control

Name the specific hazardous substance or event, state the route or consequence of harm and match it to a control that removes or reduces that risk.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Justify a fume cupboard by naming toxic or corrosive vapour released in the procedure.
  • Vent a separating funnel or gas apparatus to prevent pressure build-up safely.
  • Flush or absorb reactive gas before heating or release to prevent unwanted reaction or exposure.

3.P14—Health and safety question 1

[Maximum number: 1]

Magnesium ethanedioate ( MgC2O4\mathrm{MgC}_{2} \mathrm{O}_{4} ) decomposes on gentle heating to form magnesium carbonate and carbon monoxide.

MgC2O4→MgCO3+CO\mathrm{MgC}_{2} \mathrm{O}_{4} \rightarrow \mathrm{MgCO}_{3}+\mathrm{CO}

State why the thermal decomposition of magnesium ethanedioate should be carried out in a fume cupboard.

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