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To find the number of molecules in 50.0 grams of selenium disulfide (SeS₂), first calculate its molar mass. The molar mass of SeS₂ is approximately 78.18 g/mol. By dividing the mass (50.0 g) by the molar mass (78.18 g/mol), you obtain about 0.639 moles of SeS₂. Finally, multiplying the number of moles by Avogadro's number (6.022 x 10²³ molecules/mol) gives approximately 3.84 x 10²³ molecules of selenium disulfide in 50.0 grams.

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AnswerBot

1mo ago

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