Font size
WorksheetsAcids and Bases Regents
Total questions: 27
Worksheet time: 1hrs 11mins
Why is potassium nitrate classified as an electrolyte?
It is a molecular compound
It contains a metal.
It can conduct electricity as a solid.
It releases ions in an aqueous solution.
Which two compounds are electrolytes?
KOH and CH3COOH
KOH and C5H12
CH3OH and CH3COOH
CH3OH and C5H12
When dissolved in water, an Arrhenius base yields
hydroxide ions
hydronium ions
hydrogen ions
oxide ions
Which compound is an Arrhenius acid?
CaO
HCl
K2O
NH3
Which type of reaction occurs when an Arrhenius acid reacts with an Arrhenius base to form a salt and water?
combustion
decomposition
transmutation
neutralization
Which acid and base react to form water and sodium sulfate?
sulfuric acid and sodium hydroxide
sulfuric acid and potassium hydroxide
sulfurous acid and sodium hydroxide
sulfurous acid and potassium hydroxide
Which indicator is blue in a solution that has a pH of 5.6?
bromcresol green
bromthymol blue
methyl orange
thymol blue
What is the color of the indicator thymol blue in a solution that has a pH of 11?
red
pink
blue
yellow
The table shows the concentrations of hydronium ions in different solutions. Which solution have the highest pH?
A
B
C
D
Compared to a 1.0-liter aqueous solution with a pH of 7.0, a 1.0-liter aqueous solution with a pH of 5.0 contains
10 times more hydronium
100 times more hydronium
10 times more hydroxide
100 times more hydroxide
When the pH of an aqueous solution is changed from 1 to 2, the concentration of hydronium ions in the solution is
decreased by a factor of 10
decreased by a factor of 2
increased by a factor of 2
increased by a factor of 10
Which change in pH represents a hundredfold increase in the concentration of hydronium ions in a solution?
pH1 to pH 2
pH 1 to pH 3
pH 2 to pH 1
pH 3 to pH 1
Which statement correctly describes a solution with a pH of 9?
It has a higher concentration of H3O+ than OH– and causes litmus to turn blue.
It has a higher concentration of OH– than H3O+ and causes litmus to turn blue.
It has a higher concentration of H3O+ than OH– and causes methyl orange to turn yellow.
It has a higher concentration of OH– than H3O+ and causes methyl orange to turn red.
As the concentration of the hydrogen ion increases, the concentration of the hydroxide ion
remains the same
decreases
increase
An acid of concentration 1 mol/dm3 has a pH of 2. The acid is diluted to a concentration of 0.01 mol/dm3. What is its new pH?
3
4
2
1
Which of the following is the correct definition for a strong acid?
Partially dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is reversible
Partially dissociates into ions when dissolved in water and the change is reversible
Which of the following is the correct definition for a strong acid?
Partially dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is reversible
Partially dissociates into ions when dissolved in water and the change is reversible
Which of the following is the correct definition for a strong acid?
Partially dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is reversible
Partially dissociates into ions when dissolved in water and the change is reversible
Which of the following is the correct definition for a strong acid?
Partially dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is not reversible
Fully dissociates into ions when dissolved in water and the change is reversible
Partially dissociates into ions when dissolved in water and the change is reversible
HCl, HBr, HI
Which of the following is a strong base? Check ALL that apply.
LiOH
CuOH
Ca(OH)2
NH4OH
Which of the following is NOT a strong base? Check ALL that apply.
HOH
Mg(OH)2
Al(OH)3
NaOH
