0

Guest

Courses New

What is the mass percent of Fe3+ ions in Fe0.93O1.00(the numbers 0.93 and 1.00 are subscripts). please help

What is the mass percent of Fe3+ ions in Fe0.93O1.00(the numbers 0.93 and 1.00 are subscripts). please help

Grade:

3 Answers

Askiitians Expert Sahil Arora - IITD
19 Points
14 years ago

Dear Student ,

let out  of 0.93, Fe3+=x and Fe2+=.93-x

then using charge balance..

3*x+2*(0.93-x)=2*1

( 1 for oxygen)

x=.14

% of Fe3+=(.14/.93)*100=15%

All the best K.Mohammed





Regards,

Askiitians Experts

Sahil Arora
Sameer
15 Points
5 years ago
We have to find Fe3+% in the compound not in individual Fe component of the compound.
Let 1mole of Fe0.93O
Moles of Fe=0.93
Moles of O= 1
Let Moles of Fe3+=a 
And Moles of Fe2+=0.93-a
Charge on whole compound(i.e in 1 mole)=
a×(+3)×Ń+0.93-a(+2)×Ń+1×(-2)×Ń=0
a=0.14
%Fe3+ inFe0.93O=Weight of (Fe3+)÷Total weight of compound ×100
=        0.14×56
   ------------------------  ×100  = 11.515
   0.93×56+16×1
 
 
 
Rishi Sharma
askIITians Faculty 646 Points
3 years ago
Hello K Mohmmed,
The solution of above problem is as follows
let out of 0.93, Fe3+=x and Fe2+=.93-x
then using charge balance..
3*x+2*(0.93-x)=2*1( 1 for oxygen)
x=.14
% of Fe3+=(.14/.93)*100=15%
Thanks
I hope above solution will clear your all doubts.
Please feel free to post and ask as much doubts as possible.
All the best.

Think You Can Provide A Better Answer ?

Other Related Questions on Physical Chemistry

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More