a0,24g sample of compound of oxygen and boron was found by analysis to contain 0,144g of oxygen calculate the percentage composition of the compound by weight
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Mass of the given sample compound = 0.24g
Mass of boron in the given sample compound = 0.096g
Mass of oxygen in the given sample compound = 0.144g
% composition of compound = % of boron and % of oxygen
Therefore % of boron = mass of boron 100/mass of the sample compound
= 40%
Therefore % of oxygen = mass of oxygen 100/mass of the sample compound
= 60%
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