Consider three flasks, each containing 0.10mol of acid. You need to learn someth
ID: 927035 • Letter: C
Question
Consider three flasks, each containing 0.10mol of acid. You need to learn something about the acids in each flask, so you perform titration using an NaOH solution. Here are results of the experiment: Flask A: 10ml of NaOH required for neutralization Flask B: 20ml of NaOH required for neutralization Flask C: 30ml of NaOH required for neutrilization a)What have you learned about each of these acids from the experiment? b)Could you use the results of this experiment to determine the concentration of the NaOH? If not, what assumption about the molecular formulas of the acids would allow you to make the concentration determination?
Explanation / Answer
a) Volume of base required in flask B is twice that required in flask A. Volume of base required in flask C is thrice that required in flask A. So, protons in flask C acid have thrice the protons of acid in flask A. And, protons in acid of flask B have twice the protons of acid in flask A.
b) If acid in flask is monoprotic, concentration of NaOH will be:
(0.10 mol/0.01 L) = 10 M.