Hello, I did a lab today and I am having problems understanding it.
First I determined the heat capacity of a coffee cup calorimeter, no problem there.
-n :delta: H°=Ccal :delta: T+ms :delta: T
I have to now find the heat given off by the reaction of Mg with HCl.
I have the moles of Mg from the mass that was used=
the Ccal was determined to be .5255
what do I use for a mass? Is it the .0988g of Mg? Or do I have to include the HCl?
Not sure here. Also for "s", do I use 3.862J/g°C for Mg or do I use 4.184j/g°C because the Mg was reacted in a dilute solution.
Also could you give me a ball park number that I should be getting for :delta: H for Mg formation?