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
        An electric current is passed through a copper voltmeter and a water voltmeter connected in series. If the copper of the copper voltmeter now weights 16 mg less, hydrogen liberated at the cathode of water voltmeter measures at STP?
11 months ago

Answers : (1)

Saurabh Kumar Sinha
15 Points
							
Cu ---->  Cu2+   +  2e-
63.5g Cu is given by 2F
So,16g Cu gives 2/63.5 * 16 F
 
Now, 2H+ -----> H2  +  2e-
2F liberated 22.4L H2
So 2/63.5 * 16F liberated 22.4/2 * 32/63.5 = 5.6L H(approx.)
 
3 months ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies

Get Extra Rs. 1,590 off

COUPON CODE: SELF10


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


Get Extra Rs. 276 off

COUPON CODE: SELF10

Ask Experts

Have any Question? Ask Experts

Post Question

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