Volume of gas collected is 250ml at 26 degrees celcius at 1atm.if pressure at same temp is 25torr number of mole of O2 gas is ?
2KClO3 (s) - 2KCl (s) + 3O2 (g)
If Temperature is same, then P1V1 = P2V2
or 760*250 = ...
The volume using Van der Waals equations is provided. The solution examines is potassium chloride.