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)

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

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

The empirical formula of naphthalene is:

A hydrated salt of magnesium sulfate, $MgSO_4 \cdot xH_2O$, contains 51.2% water by mass. What is the value of 'x' in the formula?

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

Consider the following reaction: $xMnO_4^ - + y{C_2}O_4^{2 - } + z{H^ + } o xM{n^{2 + }} + 2yC{O_2} + \frac{z}{2}{H_2}O$

The values of x, y and z in the reaction are, respectively

The empirical formula of an organic compound is ${\bf{C}}{{\bf{H}}_{\bf{2}}}{\bf{O}}$ , its vapour density is 45, The molecular formula of the compound is

A compound contains 40% carbon, 6.67% hydrogen, and 53.33% oxygen. Its empirical formula is:

An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen. The right option for the empirical formula of this compound is: [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?