How many atoms of silicon are contained in 8.50 × 10^-5 grams? A) 1.44 × 10²³ atoms B) 1.82 × 10¹⁸ atoms C) 5.02 × 10³⁰ atoms D) 5.02 × 10¹⁸ atoms E) 1.82 × 10²⁰ atoms

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Quizplus · Accepted Answer

To find the number of atoms, divide the mass by the molar mass of silicon (28.0855 g/mol) to get moles, then multiply by Avogadro's number (6.022 × 10^23 atoms/mol). This calculation gives approximately 1.82 × 10^18 atoms.

How Many Atoms of Silicon Are Contained in 8