1.

The number of moles in 5 grams of Calcium is …………………. .

Answer»

0.5 mole
0.125 mole
1.25 mole
12.5 mole

Solution :Hint : `"No. of MOLES"=("MASS")/("ATOMIC mass")`
`=(5)/(40)=(1)/(8)="0.125 mole"`


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