Calculate the number of moles in 4.68 mg of silicon. (atomic mass of S – InterviewSolution

1.

Calculate the number of moles in 4.68 mg of silicon. (atomic mass of Si=28.1u)

Answer»

4.68 mg of Silicon = 4.68 x 10^-3g of silicon

moles of Silicon = Mass of Silicon / Atomic Mass (g) = 4.68x10⁻³/ 28.1 = 1.66x10^-4 mol.

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