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Old 29 Jun 2009, 5:57 PM   #7 (permalink)
maplestory
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Red face Re: Yr 11 Chemistry... help!!!!!

Quote:
Originally Posted by Olivia L View Post
Hey guys... I need serious help.
Question: explain and evaluate how water's ability to absorb heat is used to measure energy changes in chemical reactions. I need to design a first-hand experiment to measure the change in temperature when substances dissolve in water and describe how you calculate the molar heat of soloution.

Any ideas...?
heyy!
i m working on this assignment too!

u have to use the delta thingy equation, rite?

when's urs due?

i have to work out that prac this wed & it's due onli on the 3rd of aug

it seems eazy yet it;s hard , isn't?
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