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# A2 titration question

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1. Can anyone explain why the comic is multiplied by 100 in the last question?
2. (Original post by AqsaMx)
Can anyone explain why the comic is multiplied by 100 in the last question?
Hiya! I'm assuming this is Chemistry so I've moved it to the Chemistry forum for you - you're more likely to get an answer here
3. because the original acid was diluted by a factor of 100
4. It comes from the equation concentration = moles / volume.. the volume is is dm^3.. so 10cm^3 in dm^3 is 0.01.. so 0.0625/0.01 = 6.25moldm^-3
5. (Original post by GDN)
because the original acid was diluted by a factor of 100
But because you're using a 20cm3 sample from a 1dm3 sample, why wouldnt you x50 first?
6. Anyone? I'm confused
7. πr2
8. (Original post by life.of.pablo)
πr2
??

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