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: 12th pass

                        

i am not clear with my basics.eg. 1 question like we have to find the n-factor of a compound.eg KMnO4 so my sir writes KMnO4 gives Mn with a 2+ charge in acidic medium so i do not understand what is this Mn charge 2+.is it an ion or does it represents a part of compound in which we are working.if so then does every compound gives Mn charge 2+ when KMnO4 reacts. in general my main doubt is how do they write the rigth hand product side

4 years ago

Answers : (1)

Vikas TU
12157 Points
							
Dear Shashwat,
Your doubt is genuine.
KMnO4 greatly reduces to Mn2+
And therefore, valence factor becomes = > 7 – 2 = 5.
Now remember this mole concept – 2.
Here we are not doing that balancing the eqns. or writing total product formed as we are not interested here to write that.
Because all the moles – molarity – volume or titration problems can be solved by using valence factor here simply.
So only the valency is required for metal atom to calculate the valence factor.
.
And the main formulae to calculate the moles is:
moles x valence factor = moles x valence factor.
U need to understand this.
 
 
4 years 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