The percentage composition of carbon by mole in methane is:
On complete combustion, 0.246 g of an organic compound gave 0.198g of carbon dioxide and 0.1014g of water. Determine the percentage composition of carbon and hydrogen in the compound
What is the percentage composition of urine ?
The percentage composition composition of carbon in urea, [CO(NH_(2))_(2)] is
Oxidation number of carbon in methane is
The percentage composition (by weight) of a solution is 45% X, 15% Y , and 40% Z . Calculate the mole fraction of each component of the solution. (Molecular mass of X = 18, Y = 60 , and Z = 60)
Percentage composition of fibroin and sericin in silk is
Cuprous sulphide and silver sulphide are isomorphous. The atomic mass of Cu is 63.57 g/mole. If the percentage composition of Sulphur in each of these is 20.14% and 12.94% respectively then the atomic mass of silver will be:
