Waec Model Questions Vol1 2020 Chemistry Question 1
Practice objective / multiple choice question 1 from the 2020 Waec Model Questions Vol1 Chemistry examination.
A 5.60 g sample of a non‑metal oxide with formula X₂O₃ is heated in a closed vessel, releasing O₂ gas. The O₂ collected occupies 2.00 L at 298 K and 0.950 atm. Determine the atomic mass of the non‑metal X (in g mol⁻¹).
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About This Question
This is Waec Model Questions Vol1 2020 Chemistry Question 1. It is a objective / multiple choice question from the 2020 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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