Phosphorous acid, H3PO3(aq), is a diprotic oxyacid that is an important compound in industry and agriculture.

Pka1=1.30
Pka2=6.70

Calculate the pH for each of the following points in the titration of 50.0 mL of a 2.4 M H3PO3(aq) with 2.4 M KOH(aq).

(a) before addition of any KOH
(b) after addition of 25.0 mL of KOH
(c) after addition of 50.0 mL of KOH
(d) after addition of 75.0 mL of KOH
(e) after addition of 100.0 mL of KOH

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c.vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false