An evacuated glass vessel weights 40.0g when empty, 135.0g when filled with a liquid of density 0.95 g mL-1 and 40.5 g when filled with an ideal gas at 0.82 atm at 250 K. The molar mass of the gas in g mo-1 is: (Given: R = 0.082 L atm K-1 mol-1)

An evacuated glass vessel weights 40.0g when empty, 135.0g when filled with a liquid of density 0.95 g mL^-¹ and 40.5 g when filled with an ideal gas at 0.82 atm at 250 K. The molar mass of the gas in g mo^-¹ is:

(Given: R = 0.082 L atm K^-¹ mol^-¹)

Option 1 - 35

Option 2 - 50

Option 3 - 75

Option 4 - 125

2 Views|Posted 4 months ago

Asked by Shiksha User

1 Answer

Sort by:

Answered by

Alok Kumar Singh | Contributor-Level 10

4 months ago

Correct Option - 4

Detailed Solution:

Wt of liquid = 135 – 40 = 95 gm

Volume of liquid = $\frac{w t .}{d e n s i t y} = \frac{95}{0.95} = 100 m l$

Hence volume of vessel = 100 ml = 0.1 lit from ideal gas equation,

$M = \frac{d R T}{P} = \frac{0.5}{0.1} * \frac{0.0821 * 250}{0.82}$

$∴ M = 125 g / m o l$

Upvote

Taking an Exam? Selecting a College?

Get authentic answers from experts, students and alumni that you won't find anywhere else.

On Shiksha, get access to

66K

Colleges

1.2K

Exams

6.9L

Reviews

1.8M

Answers

Learn more about...

Chemistry Ncert Solutions Class 11th 2023

View Exam Details

52 Answered Questions

Share Your College Life Experience

Didn't find the answer you were looking for?

Search from Shiksha's 1 lakh+ Topics

Ask Current Students, Alumni & our Experts

Quick Actions

Community GuidelinesUser Points System

QuestionsDiscussionsTags

Have a question related to your career & education?

See what others like you are asking & answering

	Column I (Ores)		Column II (Formula)
(A)	Fluorspar	(p)	Al₂O₃.2H₂O
(B)	Cryolite	(q)	CaF₂
(C)	Bauxite	(r)	MgCO₃.CaCO₃
(D)	Dolomite	(s)	Na₃[AIF₆]