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Empirical Formula from Combustion Analysis (Example)

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Given the masses of carbon dioxide and water formed, and the initial mass of an unknown compound, determine its empirical formula. Made by faculty at the University of Colorado Boulder, Department of Chemical & Biological Engineering. Check out our Chemistry playlist: https://www.youtube.com/playlist?list=PL4xAk5aclnUi1CEFNwjcheMgyWe8BwuLS Check out our website for screencasts organized by popular textbooks: http://www.learncheme.com/screencasts/chemistry Empirical Formula from Combustion Analysis 2 (Review): http://youtu.be/tbMfvgu191Y
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Текстовые комментарии (19)
R Bratt (1 месяц назад)
This guy needs to get together with the "dry eyes" guy and put people to sleep for a living!
Robert bell (2 месяца назад)
very unorganized and slow. dont be a teacher
MRYEMAN (1 год назад)
Where did the total g come from?
JM K (1 год назад)
Why did u have to multiply H by 2?
Nick Bodale (2 месяца назад)
Because stoichiometry
Yoav Estryn (1 год назад)
U sucks
Tkoppop Wung (1 год назад)
u suck*. If you want to tell a professor he is bad, get better yourself.
Guayo Guac (1 год назад)
why does this guy sound so slow.
Cristobal Barra (2 года назад)
Seco !
Armidilly (3 года назад)
Useless. 'Because of stoichiometry'. what a joke
Ashley Cason (3 года назад)
I did a similar problem exactly the way you said and it was completely wrong...
Andrew Xu (3 года назад)
Great video! Really helped when I missed a lesson!
Brunin G3 neri (3 года назад)
fuckning useless
Rozy Ahmed (4 года назад)
dudeeeeeeeee you can't just say because of stoichiometry, kinda need to say whyyy!
Abe Froman; Sausage King of Chicago (2 года назад)
omfg thank you for asking that
LearnChemE (4 года назад)
The number of moles of carbon in CO2 is equal to the number of moles of CO2 because there is one mole of C per mole of CO2.
Rommel Ron (4 года назад)
C : 0.0203/0.0352=0.5767  ??
Rommel Ron (4 года назад)
+LearnChemE it's ok. sorry. tnx. the problem is fine and well explained.  Greetings from Quito - Ecuador
LearnChemE (4 года назад)
For carbon, that's a 7 not a 2, so 0.0703/0.0352 = 1.997 or approximately 2. Sorry for the confusion.

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