WAEC Chemistry 2010 Objective — Question 20
Question 20 of 49 from the West African Examinations Council (WAEC) Chemistry 2010 Objective paper, with the correct answer and a full explanation.
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What is the volume occupied by 2 moles of ammonia at s.t.p.?
- A. A. 44.8 dm³Correct
- B. B. 22.3 dm³
- C. C. 11.2 dm³
- D. D. 5.6 dm³
Explanation
1 mole of any gas occupies a volume of 22.4dm³ at s.t.p. Thus, 2 moles of ammonia will occupy (2x22.4)dm³ = 44.8dm³ at s.t.p.
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