Question

The balanced chemical equation for the reaction of hydrogen and oxygen is shown below. 2H2 + O2 Right arrow. 2H2O The number of moles of hydrogen that is needed to produce 0.253 mol of water is

Answer 1

0.253 mol

Step-by-step explanation:

Answer 2

The number of moles of hydrogen that is needed to produce 0.253 mol of water is 0.253.

Step-by-step explanation:

The balanced reaction is:

2 H₂ + O₂ → 2 H₂O

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of each compound participate in the reaction:

• H₂: 2 moles
• O₂: 1 mole
• H₂O: 2 moles

Then you can apply the following rule of three: if by stoichiometry 2 moles of water are produced from 2 moles of hydrogen, 0.253 moles of water are produced from how many moles of hydrogen?

`amount of moles of hydrogen=(0.253 moles of water* 2moles of hydrogen)/(2 moles of water)`

amount of moles of hydrogen= 0.253 moles

The number of moles of hydrogen that is needed to produce 0.253 mol of water is 0.253.