Posted by amanda1012 on Wednesday, October 3, 2012 at 11:30pm.
KHC8H4O4 + KOH ==>K2C8H4O4 + H2O
mols phthalate - grams/molar mass = ?
mols KOH = same (look at the coefficients in the balanced equation.)
M KOH = mols KOH/L KOH
I get about 0.066 M.
Post your work and I'll find the error.
Oh I was doing 1:2 ratio instead of 1:1... That is where I went wrong! When I recalculated it with 1:1 I got 0.066628 M
My answer is 0.06595. I used 204.22 for the molar mass of the phthalate. To get that value you had to use something like 198 for the molar mass of the phthalate. There is either a typo or you used the wrong molar mass.
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