if carbon in a stick of chalk is 5g ,what is mass of the chalk stick
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Chalk is made up of CaCO3
=} in 100g of CaCO3 , carbon is of 44grams
=} let the mass of CaCO3 be x for 5g of c
=} x = (100×5)/44
=} x = 11.63g of CaCO3
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