JAMB Chemistry 2014 Objective — Question 10
Question 10 of 50 from the Joint Admissions and Matriculation Board (JAMB) Chemistry 2014 Objective paper, with the correct answer and a full explanation.
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A silicon-containing ore has 92% ²⁸Si, 5% ²⁹Si and 3% ³⁰Si. Calculate the relative atomic mass of the silicon.
- A. 28.00
- B. 14.00
- C. 29.00
- D. 28.11Correct
Explanation
R.A.M = (28×92)/100 + (29×5)/100 + (30×3)/100 = 25.76+1.45+0.9 = 28.11.
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