chem practical! (1 Viewer)

[poOcaliciOus]

i have a chem prac test 2moros .. wonder wat u pplz did it on .. ? its on da water module ..

yeh .. and by any chance could someone explain to me .. a stoichometric relationship?

 

[insert-username]

I'm pretty sure a stoichometric relationship is the ratio between the quantites of the reactants in a chemical reaction, e.g. Ca + H20 -> H2 + CaO. Stoichometric relationship of reactants is 1:1. I think.

EDIT: kazan's probably right on the money. Molar heat of combustion. Remember how to write up a prac properly and remember the formula he posted.


I_F

 

[kazan]

$10 says your prac will be on the molar heat of combustion


H/\ = (-)mC/\T

all you need to rember

 

[A l]

Mine will be on the rate of reaction section in the Energy topic.

 

[Loz_metalhead]

We were given a booklet on dust cloud explosion. We are going to watch a video and then answer questions...there will be calculations aswel.

 

[*yooneek*]

we have 9 mini stations to go round to and do individual experiments n questions- should be cool i hope

 

[Trebla]

I did my chemistry practical exam today. We had to react magnesium in different concentrations of acid and find out one unknown concentration of the acid. I found it easier than my Physics and Biology practical exams which were often rather ambiguous.

 

[*yooneek*]

I did my chemistry practical exam today. We had to react magnesium in different concentrations of acid and find out one unknown concentration of the acid. I found it easier than my Physics and Biology practical exams which were often rather ambiguous.

ur doing physics bio and chem!!!
me 2!!!
lol we should join a club!

 

[[Damo]]

I did my chemistry practical exam today. We had to react magnesium in different concentrations of acid and find out one unknown concentration of the acid. I found it easier than my Physics and Biology practical exams which were often rather ambiguous.

i had the exact Chem. prac exam
magnesium in diff. concentrations investigating rates of reactions