12.A 134.50g sample of a medicine is made up of hydrogen, 80.70g of carbon and 47.77g of oxygen. What is the percent by mass of each element in the medicin
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Answer:
60% Carbon, 35.5% Oxygen and 4.5% Hydrogen.
Explanation:
%Carbon = 80.70/134.50 × 100
=60 %
%Oxygen = 47.77/134.5 × 100
=35.5%
%Hydrogen = 100 - (60+35.5)
=4.5%
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