iany atoms are present in 100 g sample ofHow many moles of CaCO3 would – InterviewSolution

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1.	iany atoms are present in 100 g sample ofHow many moles of CaCO3 would weigh 5 g?
Answer» Molecular mass of CaCO3 =sum of all the masses of its components.Ca=40uO=16uC=12uMolecular mass=40+12+3x16=40+12+48=100uTherefore, molar mass of CaCO3 is 100g100g of CaCO3 contains 1 mole.? ------------------------------> 5moles=100x5/1=500 gms∴ 5moles of CaCO3 contains 500g

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