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CHEM AND BIO HELP AND TIPS HERE

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Raywin:

--- Quote from: Nidzzz on June 06, 2010, 09:48:45 am ---thanks alot raywin but i was askin lke do we need 2 noe de no. of carbon in pertroleum , etcc
--- End quote ---

No, u do not need to know tht. :)

WARRIOR:

--- Quote from: Raywin on June 06, 2010, 09:46:58 am ---Ryte guys, just confirming here,

In hydrolysis, all we need to know is that fats and oils can be hydrolyzed into glycerol and fatty acids using dilute acids (acid hydrolysis) and they can be hydrolyzed into glycerol and the salt of the acid by using an alkali (alkaline hydrolysis or saponification), and the salts of the higher fatty acids are called soaps.

Umm, this is all we need to know abt hydrolysis, right? ???
Thanks a lot guyss.. :D  

--- End quote ---
u got it the wrong way..

sopnification  ( alkaline hydrolysis ) of the fats  will give you  A sodium salt  of carboxylic acid ( soap ) , and glycerol

then if u want the Carboxyic acid from the Na salt, you do acid hydrolsis

hydrolysis is heating under reflux with either acid / alkali

NidZ- Hero:

--- Quote from: Ari Ben Canaan on June 06, 2010, 08:39:35 am ---C2H6 + 3.5O2 -------->  2CO2 + 3H2O

After you form the above equation do this:

90g / (24+6) = 3 moles of ethane

2*3 moles = 6 moles of CO2 (using the molar ratio)

6*24 = 144 dm3

--- End quote ---
thanz a lot ari By the way ethene is gas y nt use this volume/ 24dm3
okko may be dey say its grams rght

thanz anyways

elemis:

--- Quote from: Nidzzz on June 06, 2010, 09:53:13 am --- thanz a lot ari By the way ethene is gas y nt use this volume/ 24dm3
okko may be dey say its grams rght

thanz anyways

--- End quote ---

WHen they say grams just assume it is a solid. FORGET EVERYTHiNG ELSE :P

No problem, always around to help ;)

WARRIOR:
also u have to know acid hyrolysis of proteins and starch ( carbs )

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