Hi I have a question which I having difficulty answering, if anyone could give me some pointers of where to find out how to calculate the answer that would be great.

The reaction is H_{2(g)} + I_{2(g)} <-> 2HI_{(g)}

The reaction consits of 0.025mol H_{2} and 0.05mol of I_{2} and is maintained at 750K until the equilibrium is established. I need to calculate the composition of the equilibrium at this temperature.

Any pointers are much appreciated, Thanks.