A sample of calcium carbonate Ca(CO)₃ has the following percentage composition : Ca = 40%; C = 12%; O = 48% If the law of constant proportions is true, then the weight of calcium in 4 g of a sample of calcium carbonate obtained from another source will be

Question: A sample of calcium carbonate Ca(CO)₃ has the following percentage composition : Ca = 40%; C = 12%; O = 48% If the law of constant proportions is true, then the weight of calcium in 4 g of a sample of calcium carbonate obtained from another source will be

(a) 0.016 g 

(b) 0.16 g

(c) 1.6 g 

(d) 16 g

Correct Answer: (c) 1.6 g

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