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The molecular weight of calcium carbonate CaCO 3 is: (A) 80 (B) 90 (C) 100 (D) 110
Dear student Molecular weight of Ca = 40Molecular weight of C = 12 Molecular weight of O = 16 Molrcular weight of CaCO 3 = 100 g/mol
Molecular weight is the mass of whole molecule.Steps:- (1) Chemical formula of calcium carbonate ⟶CaCO3(2) Mass of Calcium⟶40 Mass of Carbon⟶12 Mass of Oxygen⟶16(3) Multiply mass of each element by number of atoms of that element.(4) Add all the masses obtained after multiplication.⟶CaCO3=1×40+1×12+3×16=40+12+48=100.
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