What is the molar ratio in this equation

Question

I have this equation and I am trying to find the concentration of the oxalic acid. I need to know the ratio of the MnO4- and the H2C2O2. The equation is 6H + 2MnO4 + 5H2C2O2 --> 2Mn + 8H2O + 10CO2. I would think it's a 2:5 ratio but was wondering if the H2 made a difference?

Answer 1

No, the H2 makes no difference. The mole ratio of MnO4 to H2C2O2 is 1 to 2.5. The ratio you state of 2.5 to 1 is the mole ratio of H2C2O2 to MnO4. Either way, H2 plays no part.