A really good way to do calculations with this information is by using this triangle:

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

Deleteit isnt working

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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