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IRISSAK [1]
3 years ago
10

Chalcopyrite, the principal ore of copper (Cu), contains 34.63 percent Cu by mass. How many grams of Cu can be obtained from 7.3

5 x 10^3 kg of the ore?
Chemistry
1 answer:
DENIUS [597]3 years ago
6 0

Answer:

2.55\times 10^{6}g Cu can be obtained from 7.35\times 10^{3}kg ore

Explanation:

1 kg = 1000 g

So, mass of ore is (7.35\times 10^{3}\times 1000)g = 7.35\times 10^{6}g

Now, 100 g of ore contains 34.63 g of Cu

So, 7.35\times 10^{6}g ore contains \frac{(34.63g)\times (7.35\times 10^{6}g)}{100g} Cu or 2.55\times 10^{6}g Cu.

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