Waec Model Questions Vol1 2018 Chemistry Question 48
Practice objective / multiple choice question 48 from the 2018 Waec Model Questions Vol1 Chemistry examination.
A 2.86 g sample of a non‑metal oxide XO is reduced by excess carbon at 800 °C, producing the diatomic gas X₂ and carbon monoxide. The volumes of X₂ and CO collected over water at 25 °C and 760 mmHg are 0.224 L and 0.448 L respectively. Determine the atomic mass of X and identify the non‑metal.
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About This Question
This is Waec Model Questions Vol1 2018 Chemistry Question 48. It is one of the objective questions from the 2018 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Hard .
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