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Grade 129 grade science

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.

Profile image of Pawan Prajapati
5 Years agoGrade 12
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1 Answer

Profile image of Harshit Singh
5 Years ago
Dear Student

Boron and oxygen compound → Boron + Oxygen
0.24 g → 0:096g + 0.144g
Percentage composition of the compound
For boron: 0.24g → 0.096 g
100 g → ?
100 x 0.096 = 40 %
0.24
For oxygen:
0.24 g → 0.144 g of oxygen
100 g → ?
100 x 0.144 = 60 %
0.24

Thanks