Plz answer

Asked by sildasholly2002 | 29th Jun, 2019, 07:59: 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. 

Answered by Varsha | 29th Jun, 2019, 11:44: PM

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