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

Total Price: R

There are no items in this cart.
Continue Shopping
Get instant 20% OFF on Online Material.
coupon code: MOB20 | View Course list

Get extra R 650 off


1.5gm of a monobasic acid when disslved in 150g of water lowers Frezing pt by 0.165 degrees celsius.

0.5g of same acid when titrated,after dissolution in water, requires 37.5ml of N/10 alkali.Calculate degree of dissociation of acid(If Kf of water is 1.86)

6 years ago


Answers : (2)


Dear student,

Freezing point depression can be calculated using the Clausius-Clapeyron equation and Raoult's law. In a dilute ideal solution the freezing point is:

Freezing Pointtotal = Freezing Pointsolvent - ΔTf

where ΔTf = molality * Kf * i

Kf = cryoscopic constant (1.86°C kg/mol for the freezing point of water)

i = Van't Hoff factor

Please feel free to ask your queries here. We are all IITians and here to help you in your IIT JEE preparation.

All the best.

Win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.

Now you score 5+15 POINTS by uploading your Pic and Downloading the Askiitians Toolbar  respectively : Click here to download the toolbar..


Askiitians Expert

Sagar Singh

B.Tech, IIT Delhi

5 years ago

The answer is 18.34%. I''m not getting that answer. 

3 years ago

Post Your Answer

Other Related Questions on Physical Chemistry

The specific heat of a metal is 0. 16cal/g . It`s approximate atomic weight is
atomic mass *specific heat =6.4(dulong petit law) so approx. atomuic mass =6.4/.16=40 (dulong petit is used to find atomic mass or specific heat )
shivani one month ago
When a sample of baking soda is strongly ignited in a crucible ,it suffered a loss in weight of 3.1g the mass of baking soda is?
The reacn. is: 2NaHCO3 ----------> Na2CO3 + CO2 + H2O => 2* 84 = 168 gm. CO2 and H2O => 44 + 18 => 62 gm. Just divide them we get, => 168/62 = 8 gm approx. As 3.1 g was Na2CO3 gm.
2017 years ago
Give me full notes of solids state with fully explanation
@ manish in solid state , u have to only use your imagination , that chapter only uses imagination and creating the concept , the imp topics are (for boards ) 1- tetrahedral and octahedral...
Umakant biswal 3 months ago
please visit thanks and please approve my answer:} post if you have any doubt
SAHIL 3 months ago
chapter: chemical equilibrium Chemical equilibrium is achieved when the rates of 2 reactions become equal.Does this mean there are 2 reactions going on? like.for example,in solid-liquid...
yes, when the equilibriumm is achieved, both the foward and backward reactions are going on, here both the concentrations of reactants and products are equal eg: PCl 5 2 + Cl 3 PCl when...
seetaram dantu 19 days ago
@ nishtha yes , you are correct , both have to be run on the same place simoultaneously , only then equilibrium can acheive . and one more thing – one process may be slower and other one...
Umakant biswal 19 days ago
the example was PCl 5 indicates equilibrium)( 2 + Cl 3 PCl sorry for keyboard error thank you
seetaram dantu 19 days ago
Explain why a sigma bond is stronger than a pi bond.
sigma bond is formed due to head on head overlapping of s orbitals. so ,they form stronger bonds as compared to pi bond which is formed due to parallel overlapping and gets easily broken...
ankit saurav 11 days ago
Can someone the defintion(specific and direct) and differences between aliphatic and aromatic hydrocarbons?
Aliphatic compounds can be saturated, joined by single bonds (alkanes), or unsaturated, with double bonds (alkenes) or triple bonds (alkynes). Besides hydrogen, other elements can be bound...
Umakant biswal 29 days ago
Aliphatic hydrocarbon possess straight chains. And aromatic hydrocarbon contains a aromatic chain like a benzene ring
Biswajit dash 29 days ago
View all Questions »

  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: R 15,000
  • View Details
Get extra R 3,750 off

Get extra R 650 off

More Questions On Physical Chemistry

Ask Experts

Have any Question? Ask Experts

Post Question

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