Question

8)
A 15.00 mL sample of phosphoric acid is completely neutralized by 27.65 mL of a 0.150 M standard solution of potassium hydroxide. What is the concentration of the acid? (1 point)
(A) 0.622 M

(B) 0.277 M

(C) 0.0913 M

(D) 0.0814 M


12)
The ionization of pure water forms _____.

(1 point)
(A) hydrogen and oxygen ions

(B) hydronium ions only

(C) hydroxide ions only

(D) hydronium and hydroxide ions

19)
Which describes a strong base? (1 point)
(A) produces hydronium ions in solution

(B) has a pH value below 7

(C) is the same as a co

Answer 1

19)
Which describes a strong base? (1 point)
(A) produces hydronium ions in solution

(B) has a pH value below 7

(C) is the same as a concentrated base

(D) completely dissociates in solution

Answer 2

8) C
12) D
19) D