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schepotkina [342]
3 years ago
12

Find the number of moles of water that can be formed if you have 126 mol of hydrogen gas and 58 mol of oxygen gas.

Chemistry
2 answers:
NeX [460]3 years ago
7 0

Answer : The number of moles of water formed can be 116 moles.

Explanation :

First we have to calculate the limiting and excess reagent.

The balanced chemical reaction will be:

2H_2+O_2\rightarrow 2H_2O

From the balanced chemical reaction we conclude that,

As, 1 mole of O_2 react with 2 mole of H_2

So, 58 moles of O_2 react with 58\times 2=116 moles of H_2

From this we conclude that, H_2 is an excess reagent because the given moles are greater than the required moles and O_2 is a limiting reagent and it limits the formation of product.

Now we have to calculate the moles of H_2O

From the reaction, we conclude that

As, 1 mole of O_2 react to give 2 mole of H_2O

So, 58 moles of O_2 react to give 58\times 2=116 moles of H_2O

Therefore, the number of moles of water formed can be 116 moles.

Elden [556K]3 years ago
6 0

Since a water molecule is H2O, you would divide 126 hydrogen molecules by 2, and you would get 63. That means you have 63 double hydrogen molecules, and 58 oxygen molecules to pair up with them. So that means you could have 58 molecules of water, with 5 double hydrogen molecules, so basically 10 extra molecules of hydrogen along with the H2O molecules. Hope I helped! :)

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