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28-09-2017
Chemistry

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What is the weight in grams of 3.36 × 10Æ³ molecules of copper sulfate (CuSOÁ)?

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heatandhunterz heatandhunterz

28-09-2017

Molar mass ( CuSO₄) = 159.609 g/mol

159.609 g ----------------- 6.02 x 10²³ molecules
? g ------------------ 3.36 x 10²³ molecules

mass = ( 3.36 x10²³) x 159.609 / 6.02 x 10²³

mass = 5.36 x 10²⁴ / 6.02 x 10²³

mass = 8.90 g

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