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13 July, 20:10

Aluminum bronze contains 92.0% of copper and 8.0% aluminum. what maximum mass of aluminum bronze can be prepared from 73.5g of copper and 42.2g of aluminum?

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  1. 13 July, 20:41
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    The answer is 79.9 g.

    Copper takes 92.0% of aluminum bronze and it is a limiting factor. We have aluminum in excess, so we need to make a proportion.

    If 73.5 g of copper are 92.0%, how many g of aluminum bronze will be 100%:

    73.5 g : 92.0% = x : 100%.

    x = 73.5 g : 100% * 92.0%

    x = 79.9 g

    Therefore, from 73.5 g of copper and 6.4 g of aluminum (since 79.9 g - 73.5 g = 6.4 g), maximum 79.9 g of aluminum bronze can be prepared.
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