Phosphoric acid (H3PO4) can give up three protons, each with different pKa values consisting of 2.12, 7.21, and 12.67. If plotting pH as a function of sodium hydroxide solution added, which titration curve will be formed?

Kindly check the attached picture for the diagram showing the titration curve.

Explanation:

The term "titration" is an important part of chemistry because it is being used in the Determination of the concentration is the unknown.

In this question, the titration is done between a polyprotic weak acid, that is Phosphoric acid (H3PO4) and a strong base, NaOH.

H3PO4 + OH^- -----------------> H2O + H2PO4^-.

H2PO4^-2 + OH^- ---------------> H2O + HPO4^2-

HPO4^- + OH^- ------------------> H2O + PO4^3-.

po-215 i got it right on the quiz

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)