36g of an alloy of copper and zinc contains 45% copper. how much pure copper do you need to add in order to get a 60% copper alloy?

Question

Chemistry

Tara Morton

29 November, 08:09

36g of an alloy of copper and zinc contains 45% copper. how much pure copper do you need to add in order to get a 60% copper alloy?

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Answers (1)

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Savanna Bean · Answer 1

First, you need to count copper mass in alloy.

Second, you have to make an equation an find x (the copper mass must be added). The answer is: 13,5g pure copper