[rawr_k]

I did a titration of some orange juice to determine its Vitamin C or Ascorbic Acid (AA) content with N-bromosuccinimide (NBS). I made a standard solution of AA and found concentration of NBS, then used the NBS to find the concentration of AA in 5mL of orange juice.
I then calculated the AA in the orange juice as mg/100mL.
but i got 117mg/100mL!?
which is way too much, so could you review my stoichiometry calculations to see where i went wrong?



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