A compound contains 4.07 % Hydrogen, 24.27 % carbon and 71.65 Chlorine, its empirical formula is

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

An organic compound contains 78% (by wt.) carbon and the remaining percentage of hydrogen. What is the empirical formula of this compound? (Atomic wt. of C is 12, H is 1)

A mineral sample contains 27.27% of element X (atomic mass = 56 u) and 72.73% of element Y (atomic mass = 16 u). What is the empirical formula of the mineral?

What is the empirical formula of a compound having 40% carbon, 6.66% hydrogen and 53.34% oxygen?

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'?

A Carbon compound contains 12.8 % Carbon, 2.1 % Hydrogen and 85.1 % of Bromine. The molecular weight of the compound is 187.9. Its molecular formula is (at. Wt. of Br = 80)

A hydrocarbon contains 80% carbon (atomic mass=12u) and 20% hydrogen(atomic mass=1u) by mass. Calculate its empirical formula.

A compound has an empirical formula of CH and a molecular mass of 78 g/mol. What is its molecular formula?

A compound containing only carbon and hydrogen has an empirical formula of CH2. If its molar mass is approximately 56 g/mol, what is its molecular formula?

If the empirical formula of a compound is CH and its molecular weight is 78, what is its molecular formula?