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Ede4ka [16]
3 years ago
5

A chemist found a 60.00 gram sample containing copper and oxygen. Given the following percent composition, what is the mass of c

opper in the sample?
Copper- 57.08 %
Oxygen- 42.9296


choose an answer:
O 0.5708 g Cu
o 25.02 g Cu
34.25 g cu
63.5 g Cu
Chemistry
1 answer:
Strike441 [17]3 years ago
6 0
The answer should 34.25g of Cu.
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There is 17,114825 g of powdered drink mix needed

Explanation:

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What mass of CaSO3 must have been present initially to produce 14.5 L of SO2 gas at a temperature of 12.5°C and a pressure of 1.
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When the reaction equation is:

CaSO3(s) → CaO(s) + SO2(g)

we can see that the molar ratio between CaSO3 & SO2 is 1:1 so, we need to find first the moles SO2.

to get the moles of SO2 we are going to use the ideal gas equation:

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