sign up I login
 advanced
refer a friend - earn nickels!!

Ask & Discuss Questions with Community & Experts

 Moderation Team
 90 chars left    advanced
Ask iit jee aieee pet cbse icse state board community Community Discussion Question: The percentage of
Forum Index -> Physical Chemistry like the article? email it to a friend.  
Author Message
[Post New]24 Jun 2008 19:34:03 IST
    Subject: The percentage of
[Up] View Post
juana (44)

Scorching goIITian

Olaaa!! Perrrfect answer. 6  [13 rates]
juana's Avatar
total posts: 226    
offline Offline

Fe3+ in a sample of Fe0.93 O1.0 is ?


 
    
[Post New]24 Jun 2008 22:46:24 IST
    Subject: The percentage of
[Up] View Post
juana (44)

Scorching goIITian

Olaaa!! Perrrfect answer. 6  [13 rates]
juana's Avatar
total posts: 226    
offline Offline
oops sorry for the repeated post of the question.
 this reply: 0 points  (with 0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
[Post New]24 Jun 2008 22:52:08 IST
    Subject: Re:The percentage of
[Up] View Post
rohitkuruvila (311)

Hot goIITian

Olaaa!! Perrrfect answer. 53  bad job dude!! I dont approve of this answer! 1  [78 rates]
rohitkuruvila's Avatar
total posts: 194    
online Online

is it approx 76.5%
 this reply: 0 points  (with 0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
[Post New]24 Jun 2008 23:06:30 IST
    Subject: The percentage of
[Up] View Post
aditi_g (355)

Scorching goIITian

Olaaa!! Perrrfect answer. 57  [92 rates]
aditi_g's Avatar
total posts: 282    
offline Offline
the method is...
let number ofFe2+ be x and number of Fe3+ be y
so x+ y=93
balancing charge with that of oxygen we get
2x + 3y = 200
solving these 2 eqns we get y= 14
so %age = 14/93 *100= 15 % approx
 this reply: 5 points  (with 1 Olaaa!! Perrrfect answer.   in 1 votes )   [?]
 
You have to be logged on to rate
  
[Post New]24 Jun 2008 23:07:26 IST
    Subject: The percentage of
[Up] View Post
juana (44)

Scorching goIITian

Olaaa!! Perrrfect answer. 6  [13 rates]
juana's Avatar
total posts: 226    
offline Offline
rohit it's 15.05
what method did you use to get 76.5%?
If you want the solutions have a look at the other post of this question. Some ppl have answered there.
 this reply: 0 points  (with 0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
[Post New]25 Jun 2008 10:39:34 IST
    Subject: The percentage of
[Up] View Post
sahana_2193 (26)

Cool goIITian

Olaaa!! Perrrfect answer. 4  [7 rates]
sahana_2193's Avatar
total posts: 52    
offline Offline
its 75% in wustite.
 this reply: 0 points  (with 0 Olaaa!! Perrrfect answer.   in 0 votes )   [?]
 
You have to be logged on to rate
  
 
Forum Index -> Physical Chemistry
Go to:   

Top Offers for goIITians
Correspondence Courses
Brilliant Tutorials
Narayana Institute
Aakash Institute
Classroom/Crash Courses
Narayana - Kota , Delhi , Others
Brilliant Tutorials - Class , Crash
Aakash Institute - Medical , Engg
Online Test Series
Brilliant Tutorials
Narayana Institute
Aakash Institute
Mahesh Tutorials
AMITY      Sri Chaitanya