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How many atoms are there in 90.2 g of selenium?
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How many atoms are there in 90.2 g of selenium?

User Jasonnerothin
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Answer:First calculate the moles of selenium by multiplying the mass x molar mass 90.2 × 78.96 = 7122.2 moles. Number of moles multiplied by ...

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User WebBrother
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