How is percent composition calculated? A. Dividing the mass of each element in the compound by the total mass of the compound and then dividing by 100% B. Dividing the mass of each element in the compound by the total mass of the compound and then multiplying by 100% C. Dividing the total mass of the chemical compound by the mass of each component element and then multiplying by 100% D. Multiplying the total mass of the chemical compound by the mass of each element in the compound and then dividing by 100%
% composition= g of element in compound / formula mass of compound * 100. Ex: Determine % composition of oxygen in Na2CO3 %composition of O= 48g/106g * 100 which = 45.36. (48 is the mass of O3, 106 is the formula mass of Na2CO3)
Medal?
c right?
Yes!
Medal?
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