Chemistry Practice Test – Acids Bases and Salts (Questions with Answers and Explanations)

What is the p^OH of a solution whose hydrogen ion concentration is 5.00 x 10^-4 moldm^-3?

A. 10.70
B. -10.70
C. -3.30
D. 3.30

Calculate the pH of 0.01 molar solution of trioxonitrate (V) acid. (NECO 2017)

A. 1
B. 2
C. 3
D. 4

An insoluble salt can be prepared by _____ (JAMB 2013)

A. the action of dilute acid on an insoluble base
B. the reaction of metals with an acid
C. the reaction of trioxocarbonate(IV) with acid
D. double decomposition

Ethanoic acid is a monobasic because it ______ (JAMB 2018)

A. can react with a base to form salt
B. has one replaceable hydrogen ion in its molecule
C. is an organic acid
D. reacts with metals to liberate hydrogen

10.0 dm³ of water added to 2.0 moldm^-3 of 2.5 dm³ solution of HCl. What is the concentration of the final solution in moldm^-3? (JAMB 2013)

A. 2.0
B. 0.5
C. 0.4
D. 8.0