Respuesta :

znk

Answer:

a) 0.253

Explanation:

2H₂ + O₂ ⟶ 2H₂O

We want to convert moles of H₂O to moles of H₂.

Choose the conversion factor (the correct molar ratio)

It is or either 2 mol H₂/2 mol H₂O or 2 mol H₂O/2mol H₂

We choose the one with the desired units (mol H₂) on top.

Moles of H₂ = 0.253 mol H₂O × 2 mol H₂/2 mol H₂O

Moles of H₂ = 0.253 mol H₂

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