calculate difference in the masses of 100 moles of oxygen atoms and oxygen ion
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A 0.24 g sample of compound of oxygen and boron was found by analysis to contain 0.096 g of boron and 0.144 g of oxygen.
Calculate the percentage composition of the compound by weight.
Answer:
Mass of boron = 0.096g (Given)
Mass of oxygen = 0.144g (Given)
Mass of sample = 0.24g (Given)
Thus, percentage of boron by weight in the compound = (0.096/0.24)×100 % = 40%
Thus, percentage of oxygen by weight in the compound = (0.144/ 0.24) ×100 % = 60%
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