Weight of organic compound = 0.30 g
Weight of carbon dioxide = 0.88 g
Weight of water = 0.54 g
Percentage of carbon
44 g of carbondioxide contains, carbon = 12 g
0.88 g of carbon dioxide contains, carbon
= 12 x 0.88 / 44 = g
0.30 g substance contains, carbon
= 12 x 0.88 / 44 = g
100 g substance contains
Percentage of carbon = 80
Percentage of hydrogen
18 g of water contains, hydrogen = 2 g
0.54 g of water contains, hydrogen
= 2 x 0.54 / 18 = g
0.30 g of substance contains hydrogen
= 54.0 x 2 / 18 x 0.30 = g
100 g of substance contains
= 54.0 x 2 / 18 x 0.30 = g
= 20 g of hydrogen
Percentage of hydrogen = 20
Estimation of oxygen
Oxygen is commonly estimated by the method of difference. The percentage of all other elements are added together and then subtracted from 100. The balance is the percentage of oxygen.
