If 4.0 g of hydrogen and 10.0 g of oxygen are mixed according to the equation 2 H2 + 02 = 2 H20, which is the limiting reagent?

Question

1. none, they are evenly mixed
2. oxygen
3. hydrogen
4. water

Answer 1

Figure the moles of each. 4gH2 is 2 moles about, while 10g O2 is about a 1/3 mole. I suspect O2 is limiting.