What is the mass of 1.21 × 10²⁰ atoms of sulfur? (N_A = 6.022 × 10²³ mol⁻¹)

Name: What is the mass of 1.21 × 10 20 atoms of sulfur? (N A = 6.022 × 10 23 mol − 1 )
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Question

Quizplus · Accepted Answer

To find the mass, first calculate the number of moles of sulfur atoms: (1.21 × 10^20 atoms) / (6.022 × 10^23 atoms/mol) = 2.01 × 10^−4 mol. Then, multiply by the molar mass of sulfur (32.06 g/mol): 2.01 × 10^−4 mol × 32.06 g/mol = 6.44 mg.

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