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What is the amount of water produced when 8g of hydrogen is reacted with 32g of oxygen?
- a)2moles
- b)1mole
- c)3 moles
- d)0.5mole
Correct answer is option 'A'. Can you explain this answer?
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What is the amount of water produced when 8g of hydrogen is reacted wi...
Calculation of Water Produced
To determine the amount of water produced when 8g of hydrogen is reacted with 32g of oxygen, we need to first write the balanced chemical equation for the reaction which is given as:
2H2 + O2 → 2H2O
According to the equation, 2 moles of hydrogen react with 1 mole of oxygen to produce 2 moles of water. The molar mass of hydrogen is 1 g/mol while that of oxygen is 16 g/mol. Using this information, we can calculate the number of moles of hydrogen and oxygen in the given amounts as:
Number of moles of hydrogen = 8 g / 1 g/mol = 8 mol
Number of moles of oxygen = 32 g / 16 g/mol = 2 mol
Since the reaction involves 2 moles of hydrogen, we need to divide the number of moles of hydrogen by 2 to get the number of moles of water produced. Therefore, the number of moles of water produced is:
Number of moles of water = 8 mol / 2 = 4 mol
Since 1 mole of water contains 6.022 x 10^23 molecules, we can calculate the number of water molecules produced as:
Number of water molecules = 4 mol x 6.022 x 10^23 molecules/mol = 2.409 x 10^24 molecules
Therefore, the amount of water produced when 8g of hydrogen is reacted with 32g of oxygen is 4 moles or 2.409 x 10^24 molecules. Therefore, the correct answer is option A.
To determine the amount of water produced when 8g of hydrogen is reacted with 32g of oxygen, we need to first write the balanced chemical equation for the reaction which is given as:
2H2 + O2 → 2H2O
According to the equation, 2 moles of hydrogen react with 1 mole of oxygen to produce 2 moles of water. The molar mass of hydrogen is 1 g/mol while that of oxygen is 16 g/mol. Using this information, we can calculate the number of moles of hydrogen and oxygen in the given amounts as:
Number of moles of hydrogen = 8 g / 1 g/mol = 8 mol
Number of moles of oxygen = 32 g / 16 g/mol = 2 mol
Since the reaction involves 2 moles of hydrogen, we need to divide the number of moles of hydrogen by 2 to get the number of moles of water produced. Therefore, the number of moles of water produced is:
Number of moles of water = 8 mol / 2 = 4 mol
Since 1 mole of water contains 6.022 x 10^23 molecules, we can calculate the number of water molecules produced as:
Number of water molecules = 4 mol x 6.022 x 10^23 molecules/mol = 2.409 x 10^24 molecules
Therefore, the amount of water produced when 8g of hydrogen is reacted with 32g of oxygen is 4 moles or 2.409 x 10^24 molecules. Therefore, the correct answer is option A.
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Community Answer
What is the amount of water produced when 8g of hydrogen is reacted wi...
The chemical equation of water formation is 2H2 + O2 → 2H2O. Though we have 8g of hydrogen, here oxygen is the limiting reagent. So the only 4g of hydrogen can be used to produce water i.e. 36g of water. That is 2 moles.
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What is the amount of water produced when 8g of hydrogen is reacted with 32g of oxygen?a)2molesb)1molec)3 molesd)0.5moleCorrect answer is option 'A'. Can you explain this answer?
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