Question

A 0.24g sample of compound of oxygen and boron was found by analysis to contain 0.096g of boron and 0.144g of oxygen . calculate the percentage composition of the compound by weight

Answer 1

Answer:

40% boron and 60% Oxygen

Explanation:

percentage composition= .096/.24=40 for boron

and .144/.24 =60 for oxygen

Answer 2

%of O=(0.144/0.24)100=60%

AND OF BORON=100%-60%=40%