A really good way to do calculations with this information is by using this triangle:
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In a recent past paper I did this was one of the questions: calculate the amount, in moles, of carbon dioxide gas collected if you collect 144cm3.
The correct way to find this out is by doing 144 / 24000 which gives you 0.006 Mol
The photo won't show :( What is the triangle?
ReplyDeleteIt should work now :)
Deleteit isnt appearing for me
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ReplyDeleteJust did the same question on Jan 2013 2C !! :D
ReplyDeletehow do you use pressure in chemistry calculations? examples please?
ReplyDeletethe photo won't show :/
ReplyDeleteThe photo still won't show
ReplyDeleteIm guessing the triangle in the photo should represent:
ReplyDeleteVolume (dm3/cm3)
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Moles x Molar Volume (dm3/cm3)
http://www.chemistryrules.me.uk/middle/amount.htm#amount - bas calc mass
ReplyDeletego to the heading 'amount - molar volume of a gas' and the triangle is there :)
Photo wont show?
ReplyDeleteEquation is: moles= volume/24 N.B the volume must be in dm^3 so if the question gives you the volume in cm^3 then divide it by 1000
ReplyDelete