How many liters of oxygen gas are produced by the complete decomposition of 225 mL of water?
The molar quantity of
Now the decomposition of a molar quantity of water results in the formation of a HALF molar quantity of dioxygen gas, as given by the following equation:
Stoichiometry clearly shows that
We must now convert that molar quantity of gas to a volume in litres given the stated conditions:
We idealize the behaviour of water and use the ideal gas equation:
What is the volume of dihydrogen produced under these conditions?
The obvious difficulty in solving these sorts of problems is selection of the Gas Constant,