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# chemistry revison Watch

1. I'm doing GCSE Chemistry with Edexcel, and have my C3 exam coming up and I really struggle with equations such as Avogardro's law. It takes me a while to understand the method. Can anyone help me? Thanks
2. (Original post by dippers)
I'm doing GCSE Chemistry with Edexcel, and have my C3 exam coming up and I really struggle with equations such as Avogardro's law. It takes me a while to understand the method. Can anyone help me? Thanks
Take a look at this website, it really helped me: http://www.chemteam.info/Mole/Avogad...r-CalcsII.html
3. (Original post by clownfish)
Take a look at this website, it really helped me: http://www.chemteam.info/Mole/Avogad...r-CalcsII.html
aww, thank you!!
4. (Original post by dippers)
I'm doing GCSE Chemistry with Edexcel, and have my C3 exam coming up and I really struggle with equations such as Avogardro's law. It takes me a while to understand the method. Can anyone help me? Thanks
5. (Original post by Sammydemon)
Well I do understand it, but it takes me a while to understand it, and I don't think I'll remember to convert cm3 into dm3 as i'll forget. Will i get the equations in the exam?
6. (Original post by dippers)
Well I do understand it, but it takes me a while to understand it, and I don't think I'll remember to convert cm3 into dm3 as i'll forget. Will i get the equations in the exam?
What equations? Do you mean like concentration = moles/volume? and number of moles = mass/Mr ?
7. (Original post by Sammydemon)
What equations? Do you mean like concentration = moles/volume? and number of moles = mass/Mr ?
well in my book it says volume of gas=mass of gas/Mr of gas x 24 and a triangle with volume=moles x 24....

Updated: April 3, 2012
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