JEE Exam > JEE Questions > In a polymer 30% molecules have molecular wei...
Start Learning for Free
In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer is
- a)26,000
- b)30,000
- c)43,333
- d)36,000
Correct answer is option 'C'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
In a polymer 30% molecules have molecular weight 20,000, 40% molecules...
Weight Average Molecular Weight (Mw) is calculated by multiplying the weight fraction of each component with its corresponding molecular weight and then summing up these products.
Given:
- 30% molecules have molecular weight 20,000
- 40% molecules have molecular weight 30,000
- 30% molecules have molecular weight 60,000
To calculate the weight average molecular weight, we first need to calculate the weight fraction of each component.
Weight Fraction Calculation:
- Weight fraction of the first component (20,000 MW) = 30% = 0.30
- Weight fraction of the second component (30,000 MW) = 40% = 0.40
- Weight fraction of the third component (60,000 MW) = 30% = 0.30
Next, we calculate the product of weight fraction and molecular weight for each component.
Product Calculation:
- Product of weight fraction and molecular weight for the first component = 0.30 * 20,000 = 6,000
- Product of weight fraction and molecular weight for the second component = 0.40 * 30,000 = 12,000
- Product of weight fraction and molecular weight for the third component = 0.30 * 60,000 = 18,000
Finally, we sum up the products calculated above to obtain the weight average molecular weight.
Weight Average Molecular Weight Calculation:
Mw = (Product of weight fraction and molecular weight for the first component) + (Product of weight fraction and molecular weight for the second component) + (Product of weight fraction and molecular weight for the third component)
= 6,000 + 12,000 + 18,000
= 36,000
Therefore, the weight average molecular weight of the polymer is 36,000.
Given:
- 30% molecules have molecular weight 20,000
- 40% molecules have molecular weight 30,000
- 30% molecules have molecular weight 60,000
To calculate the weight average molecular weight, we first need to calculate the weight fraction of each component.
Weight Fraction Calculation:
- Weight fraction of the first component (20,000 MW) = 30% = 0.30
- Weight fraction of the second component (30,000 MW) = 40% = 0.40
- Weight fraction of the third component (60,000 MW) = 30% = 0.30
Next, we calculate the product of weight fraction and molecular weight for each component.
Product Calculation:
- Product of weight fraction and molecular weight for the first component = 0.30 * 20,000 = 6,000
- Product of weight fraction and molecular weight for the second component = 0.40 * 30,000 = 12,000
- Product of weight fraction and molecular weight for the third component = 0.30 * 60,000 = 18,000
Finally, we sum up the products calculated above to obtain the weight average molecular weight.
Weight Average Molecular Weight Calculation:
Mw = (Product of weight fraction and molecular weight for the first component) + (Product of weight fraction and molecular weight for the second component) + (Product of weight fraction and molecular weight for the third component)
= 6,000 + 12,000 + 18,000
= 36,000
Therefore, the weight average molecular weight of the polymer is 36,000.
Free Test
FREE
| Start Free Test |
Community Answer
In a polymer 30% molecules have molecular weight 20,000, 40% molecules...
Option D is correct by simple Average molecular weight formula i.e,
[m1×(%of m1)+m2×(%of m2)+m3×(%of m3)]/100
[m1×(%of m1)+m2×(%of m2)+m3×(%of m3)]/100
Attention JEE Students!
To make sure you are not studying endlessly, EduRev has designed JEE study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in JEE.
|
Explore Courses for JEE exam
|
|
Similar JEE Doubts
Top Courses for JEEView all
In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. Can you explain this answer?
Question Description
In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct 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 In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct 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 In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. Can you explain this answer?.
In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct 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 In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct 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 In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. Can you explain this answer?.
Solutions for In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. 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 In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. Can you explain this answer?, a detailed solution for In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice In a polymer 30% molecules have molecular weight 20,000, 40% molecules have molecular weight 30,000 and the rest 30% molecules have molecular weight 60000. The weight average molecular weight of the polymer isa)26,000b)30,000c)43,333d)36,000Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice JEE tests.
|
|
Explore Courses for JEE exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup