What are differences between Polar and nonpolar solvents?

5 years ago

Share

Answers : (1)

                                        

Hi


Chemists have classified solvents into three categories according to their polarity.



  1. polar protic

  2. dipolar aprotic

  3. non-polar.


Polar Protic Solvents


Let's start with the meaning of the adjective protic. In the context used here, protic refers to a hydrogen atom attached to an electronegative atom. For our purposes that electronegative atom is almost exclusively oxygen. In other words, polar protic solvents are compounds that can be represented by the general formula ROH. The polarity of the polar protic solvents stems from the bond dipole of the O-H bond. The large difference in electronegativities of the oxygen and the hydrogen atom, combined with the small size of the hydrogen atom, warrant separating molecules that contain an OH group from those polar compounds that do not. Examples of polar protic solvents are water (HOH), methanol (CH3OH), and acetic acid (CH3CO2H).


Dipolar Aprotic Solvents


Here the key word is aprotic. In the context used here, aprotic describes a molecule that does not contain an O-H bond. Solvents in this class all contain a bond that has a large bond dipole. Typically this bond is a multiple bond between carbon and either either oxygen or nitrogen. Most dipolar aprotic solvents contain a C-O double bond. Examples are acetone [(CH3)2C=O] and ethyl acetate (CH3CO2CH2CH3).


Non-Polar Solvents


Non-polar solvents are compounds that have low dielecrtic constants and are not miscible with water. Examples include benzene (C6H6), carbon tetrachloride (CCl4), and diethyl ether ( CH3CH2OCH2CH3).

5 years ago

Post Your Answer

More Questions On Inorganic Chemistry

Ask Experts

Have any Question? Ask Experts
Post Question
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!!
Click Here for details
koh is ionic or covalent
 
 
ionic
 
mohit yadav one year ago
 
KOH has one ionic (between K and OH) and one covalent (between O and H) bond. In a straight answer, it is ionic, remember the bond between a metal and a nonmetal is ionic. nonmetal-metal is...
 
Keerthi Raj one year ago
which element turns lead acetate paper black?
 
 
Hydrogen sulphide (H2S) turns lead acetate paper black. Thanks & Regards, Ruchi Shaw askIITians faculty
  img
Ruchi Shaw 6 months ago
 
H 2 S turn lead acetate paper black. Thanks & Regards Mukesh Sharma askIITians Faculty
  img
Mukesh Sharma 6 months ago
did average energy depends upon the intensity of the incident light?
 
 
no it doesn''t,only threshold frequency and KE
 
Spandan Bandyopadhyaya one year ago
 
Yes, it is directly propotional.
 
Prajwal kr one year ago
 
No,it does not depend upon intensity of incident light.it always depends upon the threshold frequency and kinetic energy.
 
BAYANA SAGAR one year ago
Which book should i buy for problem solving RC Mukherjee or P Bahadur New Pattern Numerical Chemistry
 
 
dear friend problems of both the books are good.if you have time then go for p bahadur because there are lots of problem to be solved.moreover both solved and unsolved example are sufficent...
  img
Sunil Kumar FP 5 days ago
What is the molarity of water
 
 
I assume you mean the molar concentration (moles/liter). Also assume for simplicity that the molecular weight of water is 18 gm/mol and the density is 1000gm/liter. You could use more...
  img
Apoorva Arora one month ago
View all Questions »