Question

50. The number of moles of CO2 which contain 8.0 g of oxygen​

Answer 1

Explanation:

please see the attachment...

Answer 2

Answer:

0.25

Explanation:

1 mole of carbon dioxide oxide contains 2 oxygen atoms

weight of 1 oxygen atom is 16 grams

so weight of 2 oxygen atoms must be 32 grams

by law of definite propotion

1 mole =32 grams of oxygen

x moles = 8 grams

I. e., 32x=8

so therefore x=1/4 which is 0.25

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