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Sagot :
Answer: To balance the equation for the reaction between hydrochloric acid (HCl) and oxygen gas (O2):
2 HCl (aq) + O2 (g) -> 2 H2O (l) + Cl2 (g)
Explanation:Now, let's determine the amounts based on 0.470 mol of HCl reacting.
Moles of O2 consumed:
According to the balanced equation, 2 moles of HCl react with 1 mole of O2.
Moles of O2 consumed =
0.470
mol HCl
2
2
0.470 mol HCl
= 0.235 mol O2
So, 0.235 mol of O2 is consumed.
Moles of H2O produced:
From the balanced equation, 2 moles of HCl produce 2 moles of H2O.
Moles of H2O produced =
0.470
mol HCl
×
2
mol H2O
2
mol HCl
0.470 mol HCl×
2 mol HCl
2 mol H2O
= 0.470 mol H2O
Therefore, 0.470 mol of H2O is produced.
Moles of Cl2 produced:
According to the balanced equation, 2 moles of HCl produce 1 mole of Cl2.
Moles of Cl2 produced =
0.470
mol HCl
×
1
mol Cl2
2
mol HCl
0.470 mol HCl×
2 mol HCl
1 mol Cl2
= 0.235 mol Cl2
Hence, 0.235 mol of Cl2 is produced.
Summary of results:
Moles of O2 consumed: 0.235 mol
Moles of H2O produced: 0.470 mol
Moles of Cl2 produced: 0.235 mol
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