Top Posters
Since Sunday
50
s
23
9
8
R
7
4
G
4
p
4
L
3
3
3
b
3
New Topic  
Chery Chery
wrote...
Posts: 3587
5 years ago
Consider a container of 2.0 g of hydrogen, H2 (one mole). Suppose you removed all the electrons and moved them to the other side of Earth (Earth's radius is 6380 km, k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2, NA = 6.022 × 1023 molecules/mol, e = 1.60 × 10-19 C)
(a) How much charge is left behind after you remove the electrons?
(b) What electric force do the protons exert on the electrons after they are separated as described?
Textbook 

College Physics


Edition: 1st
Authors:
Read 712 times
8 Replies
Replies
Answer verified by a subject expert
lyalllyall
wrote...
Top Poster
Posts: 625
5 years ago
Sign in or Sign up in seconds to unlock everything for free
More solutions for this book are available here
(a) 1.9 × 105 C     (b) 2.1 MN

1 H2 molecule contains 2 protons and 2 electrons.

a) So charcge left behind = charge of 2 moles protons = 2*(6.022*10^23)*(1.6*10^-19) C = 192704 C = 192.704 KC

b) F0rce exerted on electrons by protons = Couloumb force = kq^2/d^2 = (9*10^9)*(192704^2)/(2*6380*10^3)^2 =

= 2052686 N = 2.053 MN.
1

Related Topics

Chery Author
wrote...
5 years ago
Looked all over the internet for this, thank you for answering correctly
wrote...
2 years ago
Thank you
wrote...
2 years ago
thank u
wrote...
2 years ago
thank u
wrote...
A year ago
Thx
wrote...
A year ago
Thanks!
wrote...
3 weeks ago
Thanks
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  87 People Browsing
 302 Signed Up Today
Related Images
  
 3756
  
 512
  
 219
Your Opinion
Do you believe in global warming?
Votes: 338