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Asked by sildasholly2002 | 29 Jun, 2019, 19:59: PM
Expert Answer
Q.no.12
Option B is correct.
Given:
Mass of CaCO3 = 10 gm
Molar mass of CaCO3 = 100 gm
No. of mols of CaCO3 = 0.1 mole
1 mole of CaCO3 contains 1 gm atom of Ca
0.1 mole of CaCO3 contains 0.1 gm atom of Ca
0.1 mole of CaCO3 contains 0.1 gm of atom of C
1 mole of CaCO3 contains 3 gm of O
0.1 mole of CaCO3 contains 0.3 gm of O.
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