Question

What is the mass ratio of the gases collected at the anode and cathode?

Answer 1

The molar masses of hydrogen and oxygen are 2 g/mol and 32 g/mol , respectively. During electrolysis:
- For every 2 volumes of $(H_2)$, 1 volume of $(O_2)$ is produced.
- The mass ratio is 2 : 16 or simplified to 1 : 8.