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2 March, 13:19

A mixture was found to contain 1.05g of sio2, 0.69g of cellulose, and 1.82g of calcium carbonate, what percentage of calcium carbonate is in the mixture

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  1. 2 March, 16:16
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    Mass percentage is another way of expressing concentration of a substance in a mixture. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%. It is calculated as follows:

    % CaCO3 = (1.82g of calcium carbonate / (1.05 g SiO2 + 0.69 g of cellulose + 1.82g of calcium carbonate)) x 100% = 51.12% Calcium carbonate
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