Question

How many moles is 50g of CaCO3?

Answer 1

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Formula mass of CaCO3 is

40 + 12 + 3-100amu....

100g CaCO3 = 1 mole..

50g of CaCO3 = 1÷ 100x 5 = 0.5mole...

Hence ,answer is 0.5mole...

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