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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?
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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...
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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 🙄?
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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.
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