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daser333 [38]
2 years ago
13

What is the percentage by mass of copper in copper oxide (CuO)?

Chemistry
1 answer:
Viefleur [7K]2 years ago
7 0

Answer:

79.89%

Explanation:

Copper has a molar mass of 63.55

Oxygen has a molar mass of 16.00

If you add these you get 79.55

To get the mass percent of copper divide copper by the whole. 63.55/79.55*100= 79.89%

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Answer:

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Explanation:

The molecular mass of the atoms mentioned in the question is as follows -

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The molecular mass of the compound , SF₆ = 32 + ( 6 * 19 ) = 146 g / mol

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Hence , from the question ,

In 12.56 g of the compound ,

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