JAMB Chemistry 2017 Objective — Question 19
Question 19 of 40 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2017 Objective paper, with the correct answer and a full explanation.
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Calculate the amount in moles of a gas which occupies 10.5dm³ at 6atm and 30°C (R=0.082 atm dm³K⁻¹mol⁻¹).
- A. A. 2.536molCorrect
- B. B. 1.623mol
- C. C. 4.736mol
- D. D. 0.394mol
Explanation
n = PV/RT = (6x10.5)/(0.082x303) ≈ 2.536mol.
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