Question

0.24 g of compound of oxygen and boron was found by analysis to contain 0.144 of oxygen and 0.96 of boron . calculate the percentage composition of the compound by weight. plz its urgent

Answer 1

Mass of boron as given = 0.096 g
 Mass of oxygen as given = 0.144 g
Mass of sample as given = 0.24 g
Percentage of boron by weight in the compound = (0.096 ÷ 0.24 ) x 100 = 40%
Percentage of oxygen by weight in the compound = (0.144 ÷ 0.24) x 100 = 60%

Answer 2

oxygen-60 nd boron 40 precent