torilo8636 torilo8636

07-01-2018
Chemistry

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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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cirilla cirilla

07-01-2018

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

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