[Magic_Doctor]

Hello everyone,

I would like to know if a chemical laboratory analysis can determine the concentration of something of an aqueous solution.
For example, I make an aqueous solution of trichloroacetic acid (TCA), which I believe is concentrated to 33%.
I bring the bottle to the lab, saying that there is only water and TCA. I ask them to determine the exact TCA concentration.
In general, how far can the accuracy of the laboratory for such a measure?

Thank you for an answer.

[nj_bartel]

33% v/v?  They can probably give you more accuracy than you could ever want.

[Magic_Doctor]

Sorry, I forget to say that always I think in m/m or if you prefer in english in w/w.