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Liebig's Method, Duma's Method
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In this video we discuss about the various methods for the determination of %C, %H, %N in a compound.

Sachin Rana is teaching live on Unacademy Plus

Sachin Rana
IVth Year UG, IIT Bombay | YouTuber (150k subs) | No. 1 educator for Organic Chemistry.

Comments
(57)
U
Unacademy user
is it necessary for protic the H must be attached to O or N which is to be released
Sachin Rana
2 years ago
Not necessary. It should be attached to some electronegative thing. eg.- Alkyne.
Teena ashiya
2 years ago
thank you
Teena ashiya
2 years ago
i have not joined any coaching for jee i have started my preparation by your video lecture .can you plz help me how should i start my prepartion so that i will be able to cover entire course in 2 month
thanks for uploading such a beautiful course..... to be honest my condition was very poor in organic chemistry... but now I am enjoying this part.... all credit goes to u bro... thanks once again:)
X=80% and no of moles of H2O = 3. Super video bro .all the best for your future works.
Anchal pandey
a year ago
how you got 80% plz explain na
Just write the equation for the combustion of ethane(C2H6). After that just substitute the values of W, and W1 that you can find out from the equation into the equation used for percentage of carbon that was mentioned earlier in the video. It's very easy, you'll get it.
Gagandeep Singh
a year ago
what is W and W1??
Gagandeep Singh
a year ago
how is number of moles 3?? Did you take initial moles to be 1??
80% of C and 3moles of H2O. To be honest the quality of video is high. ;-)
Anchal pandey
a year ago
how yuu got 80% explain me
Zeenat Khan
a year ago
I think anchal pandey u should watch the video again
Sir do these videos cover the entire poc for jee mains?
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Naman Gupta
2 years ago
yes
Sir hydrogen ka mass to 1 hota hai App nay ku 2 liya
Skanda Prasad
a year ago
H2
The ReBel
a year ago
Consider it like this: First of all calculate the total no. Of moles H2O = (W2/18) Then, total no of moles of Hydrogen = (2*W2/18) And since 1 mole of Hydrogen weighs 1 gm. Multiply (2*W2/18) by 1 , you get total mass of Hydrogen. Now, divide it by total mass of compound= W and multiply by 100
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