Question

calculate the number of oxygen atoms in 20 grams of CaCo3
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Answer 1

Explanation:

1:Explanation

2:=100g/mol. ...

3://(as moles=mass/molecular mas) ...

4:now 1 mole of CaCo3 has 3*16=48 g of o// as CaCo3 has 3 o. ....

5: 9,6 gram of oxygen will have =9.6/32 molecules of oxygen ...

6:20 g of CaCo3 will have 0.3 molecules of oxygen