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19 April, 10:46

Sylvanite is a mineral that contains 28.0% gold by mass. How much sylvanite would you need to dig up to obtain 73.0 g of gold?

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  1. 19 April, 10:51
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    You would have to dig up 261 g of sylvanite.

    Mass of sylvanite = 73.0 g Au * (100 g sylvanite/28.0 g Au) = 261 g sylvanite.
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