logo

Ask Questions, Get Answers

 
X
 Search
Want to ask us a question? Click here
Browse Questions
Ad
0 votes

Four moles of electrons were transferred from anode to cathode in an experiment of electrolysis of water.The total volume of two gases produced will be approximately(in litre) at STP.

$\begin{array}{1 1}(a)\;22.4\\(b)\;44.8\\(c)\;67.2\\(d)\;89.4\end{array}$

Can you answer this question?
 
 

1 Answer

0 votes
At Anode : $40H^-\rightarrow 2H_2O+O_2+4e^-$
At cathode : $40H^+4e^-\rightarrow 2H_2$
If number of moles of electron transferred=4
Number of moles of oxygen liberated=1
Number of moles of hydrogen liberated=2
So total moles of gases =3
Volume of gases =$3\times 22.4=67.2litre$
Hence (c) is the correct answer.
answered Feb 17, 2014 by sreemathi.v
 

Related questions

Ask Question
student study plans
x
JEE MAIN, CBSE, NEET Mobile and Tablet App
The ultimate mobile app to help you crack your examinations
Get the Android App
...