Question

1. Hydrogen rencts with oxygen to produce water as in the reaction equation below. Assume
that before the reaction take place, there is 20 g H2 gas and 224 g O2 gas.

2H2(g) + O2(g) 2H2O(g)

(i) Determine the limiting reagent in this reaction. Show your calculation.
(ii) Determine the quantity in moles of H2 and O2 consumed in the reaction.
(iii) Calculate the mass of H2O produced at the end of the reaction.
(iv) Calculate the mass of the excess reagent left after the reaction has completed.

Answer 1

Avogadro's law, a statement that under the same conditions of temperature and pressure, equal volumes of different gases contain an equal number of molecules.