JAMB Mathematics 2022 Objective — Question 6
Question 6 of 41 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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How many atoms are present in 12 g of magnesium?
- A. 2.4 × 10²³
- B. 1.204 × 10²⁴
- C. 3.01 × 10²³Correct
- D. 1.51 × 10²³
Explanation
Moles of Mg = 12/24 = 0.5 mol. Atoms = 0.5 × 6.02 × 10²³ = 3.01 × 10²³.
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