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A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?
- a)C5H7N
- b)C10H16N2
- c)C8H14N3
- d)C10H14N2
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the m...
Hence, the simplest molecular formula(empirical formula) C5H7N
The empirical Mass = 81
Now, molecular formula can be calculated using the ratio of molecular mass and empirical mass.
The ratio of molecular mass and empirical mass = 2 : 1
Hence, the molecular formula of the compound is C10H14N2.
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A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the m...
Given Data:
- Carbon (C) composition: 74%
- Hydrogen (H) composition: 8.7%
- Nitrogen (N) composition: 17.3%
- Molecular mass: 162
Calculating the number of moles of each element:
1. Calculate the molar mass of each element:
- C: 12 g/mol
- H: 1 g/mol
- N: 14 g/mol
2. Calculate the number of moles of each element:
- Moles of C = (74 g / 12 g/mol) = 6.17 mol
- Moles of H = (8.7 g / 1 g/mol) = 8.7 mol
- Moles of N = (17.3 g / 14 g/mol) = 1.24 mol
Find the ratio of moles:
Divide the moles of each element by the smallest number of moles:
- C: 6.17 / 1.24 = 5
- H: 8.7 / 1.24 = 7
- N: 1.24 / 1.24 = 1
Construct the molecular formula:
- Multiply each element by the ratio obtained:
- C: 5
- H: 7
- N: 1
Final Molecular Formula:
- The molecular formula is C10H14N2, which corresponds to option 'D'.
- Carbon (C) composition: 74%
- Hydrogen (H) composition: 8.7%
- Nitrogen (N) composition: 17.3%
- Molecular mass: 162
Calculating the number of moles of each element:
1. Calculate the molar mass of each element:
- C: 12 g/mol
- H: 1 g/mol
- N: 14 g/mol
2. Calculate the number of moles of each element:
- Moles of C = (74 g / 12 g/mol) = 6.17 mol
- Moles of H = (8.7 g / 1 g/mol) = 8.7 mol
- Moles of N = (17.3 g / 14 g/mol) = 1.24 mol
Find the ratio of moles:
Divide the moles of each element by the smallest number of moles:
- C: 6.17 / 1.24 = 5
- H: 8.7 / 1.24 = 7
- N: 1.24 / 1.24 = 1
Construct the molecular formula:
- Multiply each element by the ratio obtained:
- C: 5
- H: 7
- N: 1
Final Molecular Formula:
- The molecular formula is C10H14N2, which corresponds to option 'D'.
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A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer?
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A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer?.
A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer?.
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A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer?, a detailed solution for A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of A compound is composed of 74% C , 8.7% H and 17.3% N by mass. If the molecular mass of the compound is 162, what is its molecular formula?a)C5H7Nb)C10H16N2c)C8H14N3d)C10H14N2Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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