A sample of a compound of Cl and O reacts with an excess of H2 to give 0.233g of HCl and 0.403g of H2O. Determine the empirical formula of the compound

Cl2O7

Explanation:

Molar mass of HCl= 36.5gmol-1

Molar mass of water =18gmol-1

To get the ratio of chlorine present in the original substance

0.233/36.5= 0.00638

To get ratio of oxygen present in the original compound

0.403/18= 0.0224

Then divide through by the lowest ratio

Cl- 0.00638/0.00638 O- 0.0224/0.00638

Cl- 1 O- 3.5

Multiplying through by 2 to give whole numbers

Cl-2. O-7

Hence the empirical formula of the compound is Cl2O7

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation:

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.