Home
Class 12
CHEMISTRY
Vapour pressure of water is 360 mm Hg, h...

Vapour pressure of water is 360 mm Hg, how much urea should be added to 200 mL water to reduce its vapour pressure by 0.5% (Molecular wt. of urea =60)`(100)/(3)g)`

Text Solution

Verified by Experts

The correct Answer is:
3.33 g
`(0.005p_(A)^(@))/(p_(A)^(@))=((x)/(60))/((x)/(60)+(200)/(18))`
Promotional Banner

Topper's Solved these Questions

  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-A)|50 Videos

  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-B)|21 Videos

  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-J) AAKASH CHALLENGERS QUESTIONS|10 Videos

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D|10 Videos

  • SOME BASIC CONCEPT OF CHEMISTRY

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT( SECTION - D) Assertion-Reason Type Questions|15 Videos

Similar Questions

Explore conceptually related problems

What should be the mass of glucose to be added to 900 g water to decrease vapour pressure by 1% ?

Vapour pressure of pure water is 40 mm. if a non-volatile solute is added to it, vapour pressure falls by 4 mm. Hence, molality of solution is

What mass of urea be dissolved in 171 g of water so as to decrease the vapour pressure of water by 5% ?

Vapour pressure of pure water at 298 k is 23.8 mm Hg. Calculate the lowering of vapour pressure caused by adding 5g of sucrose in 50 g of water.

100 g of water contains 1.0 g urea and 2.0 g sucrose at 298 K . The vapour pressure of water at 298 K is 0.3 atm . Calculate the vapour pressure of the solution. (Molecular weight of urea = 60 , Molecular weight of sucrose = 342 )

Calculate the mass of a non-volatile solute ( molecular mass 40 ) which should be dissolved in 114 g octane to reduce its vapour pressure to 80% .

Calculate the mass of a non-volatile solute ( molecular mass 40 ) which should be dissolved in 114 g octane to reduce its vapour pressure to 80% .

At 298 K , the vapour pressure of water is 23.75 mm Hg . Calculate the vapour pressure at the same temperature over 5% aqueous solution of urea. [CO(NH_(2))_(2)] .

Vapour pressure of pure water at 298 K is 23.8 mm Hg . 50g of urea (NH_(2)CONH_(2)) is dissolved in 850g of water. Calculate the vapour pressure of water for this solution and its relative lowering.

Vapour pressure of pure water at 298 K is 23.8 mm Hg . 50g of urea (NH_(2)CONH_(2)) is dissolved in 850g of water. Calculate the vapour pressure of water for this solution and its relative lowering.