Question

Determine the empirical formula of a compound that contains 2.61 g of carbon, 0.65 g of hydrogen, and 1.74 g of oxygen.

Answer 1

Experimentally it was found that a compound contained 2.61g of carbon, 0.65g of hydrogen and 1.74g of oxygen.
Use these results to determine the empirical formula.

1 Elements present...................................... C..............
H................ O
2. Mass of each element
(g)..................... 2.61..........0.65............1.74
3. RAM of each element..............................12................1...............
16
4. Moles of each element (mass/RAM) 0.2175.......0.65............0,11
5. Mole ratio (divide by smallest)...............
2.................6.................1

Empirical formula = C₂H₆O