pH of Orange Juice?

Question

How would one go about finding the pH of orange juice, using titration and the inverse log function?

Answer 1

Ph of Orange juice is 3.5

But some brands like to advertise theirs as lower. Tropican says theirs is 2.0

But milk is 6.4 and sea water 8.5

But your gastic juices can neutralize any acid effect so it is of little concern unless you are taking a medication which would conflict.

The method is in every text book under "titration"

Answer 2

The best way would be to titrate a given quantity of orange juice agains t a standard base, such as 1 molar NaOH. Then you could calculate the pH based on the quantity of NaOH required.

Although pH is defined as the inverse log of the H+ ion concentration, I don't think you really need that here in this calculation.