NEET Exam > NEET Questions > Que. 81.4 gram sample of ethyl alcohol contai...
Start Learning for Free
Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g?
please solve this 🙄?
please solve this 🙄?
Most Upvoted Answer
Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water th...
Given data:
Mass of sample = 81.4 g
Mass of water present = 0.002 g
To find: Mass of pure ethyl alcohol present
Solution:
Step 1: Calculate the mass of impurities (water) in the sample
Mass of impurities = 0.002 g
Step 2: Subtract the mass of impurities from the mass of sample to get the mass of pure ethyl alcohol
Mass of pure ethyl alcohol = Mass of sample - Mass of impurities
Mass of pure ethyl alcohol = 81.4 g - 0.002 g
Mass of pure ethyl alcohol = 81.398 g
Step 3: Round off the answer to the proper number of significant figures
The given data has 3 significant figures (81.4 g), so the answer should also have 3 significant figures. The third digit after the decimal point is 9, which is greater than 5. Therefore, we round up the second digit after the decimal point (9) to get the final answer.
Mass of pure ethyl alcohol = 81.4 g
Answer: D. 81 g
Mass of sample = 81.4 g
Mass of water present = 0.002 g
To find: Mass of pure ethyl alcohol present
Solution:
Step 1: Calculate the mass of impurities (water) in the sample
Mass of impurities = 0.002 g
Step 2: Subtract the mass of impurities from the mass of sample to get the mass of pure ethyl alcohol
Mass of pure ethyl alcohol = Mass of sample - Mass of impurities
Mass of pure ethyl alcohol = 81.4 g - 0.002 g
Mass of pure ethyl alcohol = 81.398 g
Step 3: Round off the answer to the proper number of significant figures
The given data has 3 significant figures (81.4 g), so the answer should also have 3 significant figures. The third digit after the decimal point is 9, which is greater than 5. Therefore, we round up the second digit after the decimal point (9) to get the final answer.
Mass of pure ethyl alcohol = 81.4 g
Answer: D. 81 g
Community Answer
Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water th...
Attention NEET Students!
To make sure you are not studying endlessly, EduRev has designed NEET study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in NEET.
|
Explore Courses for NEET exam
|
|
Similar NEET Doubts
Top Courses for NEETView all
Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄?
Question Description
Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄?.
Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄?.
Solutions for Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? in English & in Hindi are available as part of our courses for NEET.
Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free.
Here you can find the meaning of Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? defined & explained in the simplest way possible. Besides giving the explanation of
Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄?, a detailed solution for Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? has been provided alongside types of Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? theory, EduRev gives you an
ample number of questions to practice Que. 81.4 gram sample of ethyl alcohol contains 0.002 gram of water the amount of pure ethyl alcohal to the proper number of significant figure is A. 81.398 g B. 71.40g C. 91.4g D. 81 g? please solve this 🙄? tests, examples and also practice NEET tests.
|
|
Explore Courses for NEET 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