1.The following plot shows a titration curve for the titration of 1.00L of 1.00M diprotic acid H?A with NaOH.
Which point a-d represents pKa??
A) point a
B) point b
C) point c
D) point d
2.What is the strongest acid of the following?
A) HOCl
B) HOI
C) HOBr
D) all are equivalent
3.What are the conjugate acid-base pairs in the following chemical reaction
NH?(aq)+H?O(l)?NH??(aq)+OH?(aq) ?
A) NH? and NH??
B) NH?, H?O and NH??, OH?
C) NH?, OH? and H?O, NH??
D) NH?, NH?? and H?O, OH?
4.Which one of the following is not considered to be a Lewis base?
A) H?O
B) NH??
C) NH?
D) Cl?
5.What are the Bronsted-Lowry bases in the following chemical reaction
C?H?N(aq)+H?O(l)?C?H?NH?(aq)+OH?(aq) ?
A) C?H?N, H?O, OH?
B) C?H?N, C?H?NH?
C) C?H?N, OH?
D) C?H?N, H?O
6.Write a balanced equation for the dissociation of the Bronsted-Lowry acid HSO?? in water
A) HSO??(aq)+H?O(l)?SO?²?(aq)+H?O?(aq)
B) HSO??(aq)+H?O(l)?SO?(g)+OH?+H?O(l)
C) HSO??(aq)+H?O(l)?SO?²?(aq)+OH?(aq)
D) HSO??(aq)+H?O(l)?H?SO?(aq)+OH?(aq)
7.Which of the following Bronsted-Lowry acids does not behave as a strong acid when it is dissolved in water?
A) HBr
B) HNO?
C) HCl
D) HClO?