JEE Exam > JEE Questions > An organic compound made of C, H and N contai...
Start Learning for Free
An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :
- a)70
- b)140
- c)100
- d)65
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
An organic compound made of C, H and N contains 20% nitrogen. Its mole...
Nitrogen at. wt. = 14 in a molecule minimum one atom of N is present
i.e., 20% ≡ 14 Molecular weight = 70
100% ≡ 14 × 5 = 70
i.e., 20% ≡ 14 Molecular weight = 70
100% ≡ 14 × 5 = 70
Free Test
FREE
| Start Free Test |
Community Answer
An organic compound made of C, H and N contains 20% nitrogen. Its mole...
Calculation of Molecular Weight
To determine the molecular weight of the organic compound, we need to consider the percentage of nitrogen present in the compound, which is 20%.
Given Information:
- Percentage of nitrogen (N) = 20%
- Percentage of carbon (C) = 80%
- Percentage of hydrogen (H) = Remaining (100% - 20% - 80% = 0%)
Calculation:
- Assume we have 100 grams of the compound
- Mass of N = 20 grams
- Mass of C = 80 grams
- Number of moles of N = 20/14 = 1.43 moles (using atomic weight of N = 14)
- Number of moles of C = 80/12 = 6.67 moles (using atomic weight of C = 12)
- Number of moles of H = 100 - (1.43 + 6.67) = 91.9 grams (since the total mass is 100 grams)
- Molecular weight = (1.43 x 14) + (6.67 x 12) + (91.9 x 1) = 70
Therefore, the molecular weight of the organic compound containing 20% nitrogen is 70. Hence, the correct answer is option 'A'.
To determine the molecular weight of the organic compound, we need to consider the percentage of nitrogen present in the compound, which is 20%.
Given Information:
- Percentage of nitrogen (N) = 20%
- Percentage of carbon (C) = 80%
- Percentage of hydrogen (H) = Remaining (100% - 20% - 80% = 0%)
Calculation:
- Assume we have 100 grams of the compound
- Mass of N = 20 grams
- Mass of C = 80 grams
- Number of moles of N = 20/14 = 1.43 moles (using atomic weight of N = 14)
- Number of moles of C = 80/12 = 6.67 moles (using atomic weight of C = 12)
- Number of moles of H = 100 - (1.43 + 6.67) = 91.9 grams (since the total mass is 100 grams)
- Molecular weight = (1.43 x 14) + (6.67 x 12) + (91.9 x 1) = 70
Therefore, the molecular weight of the organic compound containing 20% nitrogen is 70. Hence, the correct answer is option 'A'.
|
Explore Courses for JEE exam
|
|
Top Courses for JEEView all
Question Description
An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. 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 An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer?.
An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. 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 An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer?.
Solutions for An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for JEE.
Download more important topics, notes, lectures and mock test series for JEE Exam by signing up for free.
Here you can find the meaning of An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer?, a detailed solution for An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer? has been provided alongside types of An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice An organic compound made of C, H and N contains 20% nitrogen. Its molecular weight is :a)70b)140c)100d)65Correct answer is option 'A'. Can you explain this answer? tests, examples and also practice JEE tests.
|
|
Explore Courses for JEE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up
within 7 days!
within 7 days!
Takes less than 10 seconds to signup