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VCE Stuff => VCE Science => VCE Mathematics/Science/Technology => VCE Subjects + Help => VCE Chemistry => Topic started by: wildareal on April 21, 2010, 06:37:24 pm

Title: Stoic Question
Post by: wildareal on April 21, 2010, 06:37:24 pm
What volume of 0.250M H2SO4 is needed to react completely with 13.5g of NaOH.

2NaOH(aq) + H2SO4(aq)---> Na2SO4(aq)+2H2O(l)
Title: Re: Stoic Question
Post by: vexx on April 21, 2010, 06:40:05 pm
What volume of 0.250M H2SO4 is needed to react completely with 13.5g of NaOH.

2NaOH(aq) + H2SO4(aq)---> Na2SO4(aq)+2H2O(l)

Find mole of NaOH = 13.5/40 (or whatever the molar mass of NaOH is)
and then using the ratio above, times the mole of this by a half to get the mole of H2SO4.
Using this mole you can use the v=n/c equation to find the volume.