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A compound contain 69.5% oxygen and 30.5% nitrogen and its molecular weight is 92. The formula of the compound is
- a)N2O
- b)NO2
- c)N2O4
- d)N2O5
Correct answer is option 'C'. Can you explain this answer?
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Most Upvoted Answer
A compound contain 69.5% oxygen and 30.5% nitrogen and its molecular w...
Explanation:
- First, we need to find the empirical formula of the compound based on the given percentages of oxygen and nitrogen.
- Assume we have 100g of the compound, which means it contains 69.5g of oxygen and 30.5g of nitrogen.
Calculating moles of oxygen and nitrogen:
- Moles of oxygen = 69.5g / 16g/mol (molecular weight of oxygen) = 4.34 mol
- Moles of nitrogen = 30.5g / 14g/mol (molecular weight of nitrogen) = 2.18 mol
Divide by the smallest number of moles:
- Oxygen: 4.34 mol / 2.18 mol = 2
- Nitrogen: 2.18 mol / 2.18 mol = 1
Empirical formula: N2O4 (2 nitrogen atoms and 4 oxygen atoms)
- The molecular weight of N2O4 can be calculated as:
2(N) + 4(O) = 2(14) + 4(16) = 28 + 64 = 92
- Since the given molecular weight of the compound is 92, the empirical formula N2O4 matches the molecular weight given.
Therefore, the correct formula of the compound is N2O4.
- First, we need to find the empirical formula of the compound based on the given percentages of oxygen and nitrogen.
- Assume we have 100g of the compound, which means it contains 69.5g of oxygen and 30.5g of nitrogen.
Calculating moles of oxygen and nitrogen:
- Moles of oxygen = 69.5g / 16g/mol (molecular weight of oxygen) = 4.34 mol
- Moles of nitrogen = 30.5g / 14g/mol (molecular weight of nitrogen) = 2.18 mol
Divide by the smallest number of moles:
- Oxygen: 4.34 mol / 2.18 mol = 2
- Nitrogen: 2.18 mol / 2.18 mol = 1
Empirical formula: N2O4 (2 nitrogen atoms and 4 oxygen atoms)
- The molecular weight of N2O4 can be calculated as:
2(N) + 4(O) = 2(14) + 4(16) = 28 + 64 = 92
- Since the given molecular weight of the compound is 92, the empirical formula N2O4 matches the molecular weight given.
Therefore, the correct formula of the compound is N2O4.
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A compound contain 69.5% oxygen and 30.5% nitrogen and its molecular weight is 92. The formula of the compound isa)N2Ob)NO2c)N2O4d)N2O5Correct answer is option 'C'. Can you explain this answer?
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A compound contain 69.5% oxygen and 30.5% nitrogen and its molecular weight is 92. The formula of the compound isa)N2Ob)NO2c)N2O4d)N2O5Correct answer is option 'C'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A compound contain 69.5% oxygen and 30.5% nitrogen and its molecular weight is 92. The formula of the compound isa)N2Ob)NO2c)N2O4d)N2O5Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A compound contain 69.5% oxygen and 30.5% nitrogen and its molecular weight is 92. The formula of the compound isa)N2Ob)NO2c)N2O4d)N2O5Correct answer is option 'C'. Can you explain this answer?.
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