Qualification > Sciences
Chemistry P3 7/6/2010
elemis:
--- Quote from: Shooting Star on June 04, 2010, 01:41:01 pm ---i have a question.... w06 q8 c(iii)
how do i deduce the formula? i need to know that to ans the question
ms says the test is bromine water and the result for the first one is brown to colourless this means that it is an alkene right? bt hw do i knw that the first one is alkene from the fromula given?
--- End quote ---
If its an alkene it will have the general formula Cn H2n where n is the number of carbon atoms
$H00t!N& $t@r:
--- Quote from: Ari Ben Canaan on June 04, 2010, 01:43:20 pm ---If its an alkene it will have the general formula Cn H2n where n is the number of carbon atoms
--- End quote ---
um can you please check the question... do i count all the carbon atoms or just the ones on the first line?
elemis:
--- Quote from: Shooting Star on June 04, 2010, 01:47:25 pm ---um can you please check the question... do i count all the carbon atoms or just the ones on the first line?
--- End quote ---
Hang on. :)
J.Darren:
--- Quote from: Shooting Star on June 04, 2010, 01:47:25 pm ---um can you please check the question... do i count all the carbon atoms or just the ones on the first line?
--- End quote ---
C17H33 has two fewer hydrogen atoms compared to C17H35, we can deduce that C17H33 is an alkene straightaway ...
elemis:
--- Quote from: J.Darren on June 04, 2010, 02:01:29 pm ---C17H33 has two fewer hydrogen atoms compared to C17H35, we can deduce that C17H33 is an alkene straightaway ...
--- End quote ---
How does that prove anything ?
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