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<u>Answer: </u>
<u>For 1:</u> 3.3 moles of oxygen gas is required.
<u>For 2:</u> 14 moles of hydrogen gas is required.
<u>For 3:</u> 1.5 moles of oxygen gas is required.
<u>Explanation:</u>
The chemical reaction of oxygen and hydrogen to form water follows:
- <u>For 1:</u> When 6.6 moles of
is reacted.
By Stoichiometry of the above reaction:
2 moles of hydrogen gas reacts with 1 mole of oxygen gas.
So, 6.6 moles of hydrogen gas will react with = of oxygen gas.
Hence, 3.3 moles of oxygen gas is required.
- <u>For 2:</u> When 7.0 moles of
is reacted.
By Stoichiometry of the above reaction:
1 mole of oxygen gas reacts with 2 moles of hydrogen gas.
So, 7 moles of oxygen gas will react with = of hydrogen gas.
Hence, 14 moles of hydrogen gas is required.
- <u>For 3:</u> When 3.0 moles of
is formed.
By Stoichiometry of the above reaction:
2 moles of water is formed from 1 mole of oxygen gas.
So, 3.0 moles of water will be formed from = of oxygen gas.
Hence, 1.5 moles of oxygen gas is required.