An organic compound contains 49.3% carbon, 6.84% hydrogen and its vapour density is 73. Molecular formula of compound is

Two organic compounds X and Y have the same empirical formula $CH_2O$. Compound X has a molar mass of 30 g/mol while compound Y has a molar mass of 90 g/mol. If 0.3 moles of X contains the same number of oxygen atoms as 'm' grams of Y, what is the value of 'm'?

An organic compound having molecular mass 60 is found to contain C=20%, H=6.67% and N=46.67% while rest is oxygen. On heating it gives ${\rm{N}}{{\rm{H}}_3}$ along with a solid residue. The solid residue gives violet colour with alkaline copper sulphate solution. The compound is

A hydrocarbon contains 82.76% carbon by mass. If 0.90 g of the hydrocarbon occupies a volume of 390 $cm^3$ at STP, what is its molecular formula?

An organic compound contains 90% Carbon and 10% Hydrogen by mass. Its empirical formula is

A compound X contains 32% of A, 20% of B, and the remaining percentage of C. The empirical formula of X is: (Given atomic masses of A = 64 u; B = 40 u; C = 32 u)

A hydrocarbon contains 82% carbon by weight. If the atomic weight of carbon is 12 and hydrogen is 1, what is its empirical formula?

Which of the following pairs has the same empirical formula?

What is the empirical formula of a compound containing 80% carbon and 20% hydrogen?

An organic compound contains 49.3% carbon, 6.84% hydrogen and its vapour density is 73. Molecular formula of compound is

A hydrocarbon contains 85.7% carbon. Its molecular mass is 42. The molecular formula of the compound is: