badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade: 12

                        

Calculate the mass of non-volatile solute having molar mass of 40g/mol,which should be dissolved in 114g octane to reduce its vapour pressure to 80%.

6 months ago

Answers : (2)

Saurabh Koranglekar
askIITians Faculty
8407 Points
							576-1995_IMG_20200415_225035.jpg
						
6 months ago
Vikas TU
12278 Points
							
Dear student
Let p be the vapour pressure of pure octane. The vapour pressure of solution will be  
 p=0.8 p.
Molar mass of solute (M) and octane (m)  are 40 g/mol and 114 g/mol respectively. Mass of octane, w is 114 g.
p-p'/p = Wm/Mw
W = 8g 
Hence, 8 g of solute are required.
6 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 141 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details