Question: how many atoms of each constituent element are present in 50g of caco3?
Answer: How many atoms of each constituent element are present in 50 g of CaCO3 ? 50.0 grams of CaCO3=50.0100.0=0.5 gram mol. 0.5 gram mole of CaCO3 contain oxygen atoms =0.5×3×6.022×1023=9.03×1023 atoms.