the balanced chemical equation for the reaction of hydrogen and oxygen is shown below.\n2h₂ + o₂ → 2h₂o\nthe…

the balanced chemical equation for the reaction of hydrogen and oxygen is shown below.\n2h₂ + o₂ → 2h₂o\nthe number of moles of hydrogen that is needed to produce 0.253 mol of water is\nsmaller than 0.253 mol.\nmuch greater than 0.253 mol.\nslightly greater than 0.253 mol.\nequal to 0.253 mol.

the balanced chemical equation for the reaction of hydrogen and oxygen is shown below.\n2h₂ + o₂ → 2h₂o\nthe number of moles of hydrogen that is needed to produce 0.253 mol of water is\nsmaller than 0.253 mol.\nmuch greater than 0.253 mol.\nslightly greater than 0.253 mol.\nequal to 0.253 mol.

Answer

Answer:

C. slightly greater than 0.253 mol.

Explanation:

Step1: Analyze mole - ratio from equation

From $2H_2 + O_2\rightarrow2H_2O$, the mole - ratio of $H_2$ to $H_2O$ is 2:2 or 1:1.

Step2: Calculate moles of $H_2$

To produce 0.253 mol of $H_2O$, using the mole - ratio, the moles of $H_2$ required is also 0.253 mol theoretically. But in practice, due to reaction inefficiencies and possible side - reactions, a slightly greater amount of $H_2$ is needed.