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15 August, 14:37

Sylvanite is a mineral that contains 28.0% gold by mass. How much sylvanite would you need to dig up to obtain 63.0 grams of gold?

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  1. 15 August, 17:27
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    W/w% = mass / total

    28.0 / 100 = > 0.280

    w = 63.0 / 0.280

    w = 225 g of Sylvanite
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