At S. T. P how many litres of hydrogen can be obtained from the reaction of 500 cm3 of 0.5 M H 2SO 4 with excess zinc metal?
(Gram molecular volume of H2 = 22. 4 dm 3)
- 22.4 dm 3
- 11 . 2 dm 3
- 6. 5 dm 3
-
5. 6 dm 3
- 0. 00 dm 3