Please wait...
1800-212-7858 (Toll Free)
9:00am - 8:00pm IST all days
8104911739
For Business Enquiry

or

Thanks, You will receive a call shortly.
Customer Support

You are very important to us

For any content/service related issues please contact on this toll free number

022-62211530

Mon to Sat - 11 AM to 8 PM

Home / Doubts and Solutions/CBSE/Class 12 Science/Chemistry

sir please explain me in very keen manner that what is asoociation and dissociaton and provide me knowledge dip to tackle the problem relatin g asoociation and dissociation ?

Asked by shashank mishra 23rd February 2013, 10:55 AM
Answered by Expert
Answer:
Many organic solutes when dissolved in non-aqueous (non polar) solvent associate to form a bigger molecule. Thus the no. of molecules decreases and hence colligative properties decrease.
Examples:
Acetic acid in benzene, chloro acetic acid in naphthalene

Association of two molecules (dimerisation) of acetic acid in benzene.
 
 
 Some solutes (organic acids, bases and salts) in aqueous solution undergo dissociation. In such case no. of particles increases and hence colligative properties increase.
Examples:
Dissociation of NaCl in aqueous solution.
Consider the following dissociation reaction,
NaCl 
(1 - ?)		 Na+(aq) +
?		 Cl- (aq)
?
moles after dissociation
Answered by Expert 23rd February 2013, 5:28 PM
Rate this answer
  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10

You have rated this answer /10

Report an issue
Previous Question
Next Question
Your answer has been posted successfully!

Free related questions

Q) what will the correct match of (B) & also explain the reason (one or more than one correct )
27th December 2016, 3:48 PM
According to me, none of the options given for the following question are correct.
In the question, the longest chain will be the one with C3H7 and will include 8 carbon chain, only the last option has 8 carbons but even that option includes 2,3 diene while it should be 2,4 diene.
 
7th January 2017, 1:23 PM
How can ketone be oxidised to acids using kmno4 alkaline?
12th January 2017, 1:04 PM
How can 2 methyl hexanone be oxidised using kmno4 alkaline?
12th January 2017, 2:14 PM
Explain anisotropy 
23rd January 2017, 9:36 AM
RELATED STUDY RESOURCES :
CBSE Class-12-science QUESTION ANSWERS

Chat with us on WhatsApp