Question

Hydrogen gas can be used as a clean fuel since it only produces water according to the next fuel reaction:
H2 + O2 = H2O if this reaction has a 98% experimental yield, determine the mass of H2 to produce 1000.0 kg of water.

Answer 1

need to produce 1000 kg of water.

moles of water =

reaction

H₂ + O₂   H₂O

suppose we need X mol of hydrogen.

moles of water produced by X mole hydrogen = X mol { this is theoretical yield of reaction}\

percentage yield of reaction is given by

{ reaction have 98% yield}

of Hydrogen needed

grams of hydrogen = moles molar mass

= 56689.34 2

= 113378.68 gm

or = 113.378 kg