How many moles of hydrogen gas would be needed to react with excess carcon dioxide to produce 88.1 moles of water vaporazation?

All of these stoichiometry problems are worked alike. Just follow the steps on the link I gave you earlier.

To determine the number of moles of hydrogen gas needed to react with excess carbon dioxide, we first need to write and balance the chemical equation for the reaction.

The reaction between hydrogen gas (H2) and carbon dioxide (CO2) to produce water (H2O) can be represented by the following balanced chemical equation:

CO2 + H2 -> H2O

From the balanced equation, we can see that one mole of carbon dioxide reacts with one mole of hydrogen gas to produce one mole of water.

Therefore, the number of moles of hydrogen gas needed can be calculated by using the stoichiometric ratio between hydrogen gas and water.

Given that 88.1 moles of water vaporization are produced, we can conclude that 88.1 moles of hydrogen gas are needed for the reaction.