All Courses
Explore Courses UPSC Exam UPSC Test Series Free Notes EduRev Infinity Get the App Login Join for Free
Sign in Open App
NEET Exam  >  NEET Questions  >  If 0.24g of a volatile liquid upon vapourizat... Start Learning for Free
SaveJoin the Discussion on the App
If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)
  • a)
    95.39
  • b)
    5.993
  • c)
    95.93
  • d)
    56.0
Correct answer is option 'D'. Can you explain this answer?
FREE This question is part of
Download PDF Attempt Test
Download PDF Attempt this Test
Most Upvoted Answer
If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours...
Given:
- Mass of volatile liquid = 0.24 g
- Volume of vapours = 45 mL
- Density of hydrogen = 0.089 g/L

To Find:
Vapour density of the substance

Solution:

1. Convert volume of vapours to volume at STP
- NTP = 1 atm and 298 K
- STP = 1 atm and 273 K
- Using the Combined Gas Law,
(P1 x V1)/T1 = (P2 x V2)/T2
- P1 = P2 = 1 atm
- T1 = 298 K
- T2 = 273 K
- V1 = 45 mL
- V2 = ?

(V1/T1) = (V2/T2)
V2 = (V1 x T2)/T1
V2 = (45 mL x 273 K)/298 K
V2 = 41.15 mL

2. Convert mass to moles
- Molar mass of substance = ?
- Let's assume the substance is a hydrocarbon
- So, molar mass = (12 x a) + (1 x b)
- where a and b are the number of carbon and hydrogen atoms respectively
- Let's assume the substance has 1 carbon and 4 hydrogen atoms
- Molar mass = (12 x 1) + (1 x 4) = 16 g/mol
- Moles of substance = mass/molar mass
- Moles of substance = 0.24 g/16 g/mol
- Moles of substance = 0.015 mol

3. Calculate Vapour density
- Vapour density = (Molar mass of substance/2) x (Volume of vapours/Volume at STP)
- Vapour density = (16 g/mol/2) x (45 mL/41.15 mL) x (1 L/1000 mL) x (1/0.089 g)
- Vapour density = 56.0

Therefore, the Vapour density of the substance is 56.0.
Free Test
FREE
Start Free Test
Start Free Test
Community Answer
If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours...
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.
< Previous Question Next Question >
Explore Courses for NEET exam

Similar NEET Doubts

Direction: Read the passage given below and answer the following questions: Boiling point or freezing point of liquid solution would be affected by the dissolved solids in the liquid phase. A soluble solid in solution has the effect of raising its boiling point and depressing its freezing point. The addition of non-volatile substances to a solvent decreases the vapour pressure and the added solute particles affect the formation of pure solvent crystals. According to many researches the decrease in freezing point directly correlated to the concentration of solutes dissolved in the solvent. This phenomenon is expressed as freezing point depression and it is useful for several applications such as freeze concentration of liquid food and to find the molar mass of an unknown solute in the solution. Freeze concentration is a high quality liquid food concentration method where water is removed by forming ice crystals. This is done by cooling the liquid food below the freezing point of the solution. The freezing point depression is referred as a colligative property and it is proportional to the molar concentration of the solution (m), along with vapour pressure lowering, boiling point elevation, and osmotic pressure. These are physical characteristics of solutions that depend only on the identity of the solvent and the concentration of the solute. The characters are not depending on the solute’s identity. Q.When a non volatile solid is added to pure water it will

Top Courses for NEETView all

Top Courses for NEET

If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer?
Question Description
If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer?.
Solutions for If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer? 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 If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer?, a detailed solution for If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice If 0.24g of a volatile liquid upon vapourization gives 45ml of vapours at NTP. What will be the vapour density of the substance? (Density of H = 0.089 gL⁻1)a)95.39b)5.993c)95.93d)56.0Correct answer is option 'D'. Can you explain this answer? tests, examples and also practice NEET tests.
Explore Courses for NEET exam

Top Courses for NEET

Explore Courses

Suggested Free Tests

Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev
Get App
© 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