Free Printable AP Chemistry Unit 8.4- Titration Quiz

Worksheets

AP Chemistry Unit 8.4- Titration Quiz

Total questions: 21

Worksheet time: 29mins

Name

Class

Date

If it takes 54 mL of 0.1 M NaOH to neutralize 125 mL of an HCl solution, what is the concentration of HCl?

0.043 M

23.148 M

0.231 M

If it takes 50 mL of 0.5 M Ca(OH)₂ to neutralize 125 mL of sulfuric acid, what is the concentration of the acid?

0.2 M

5 M

0.5 M

A neutralization reaction involves when an acid and base reacts to produce

a new acid and a new base

water and salt

carbon dioxide and water

Titration is a process in which a neutralization reaction is used to determine the ______ of a solution.

molarity

volume

moles

What is the endpoint of a titration

Where the amount of acid and base are equal as shown by a colour change

Where there is no base

When the volume of base in the burette is used up

When there is no acid

pH less than 7.

Acids

Bases

All

What are the products of the neutralization shown below?
Ca(OH)₂ + H₂CO₃ -->

H₂O + Ca₂CO₃

CaO + CO₃

H₂O + CaCO₃

What indicator is commonly used in titrations?

Phenolphthalein

Bromothymol Blue

Litmus

Universal

Identify the products of the chemical equation
3 LiOH + H₃PO₄ →

Li₃PO₄ + 3 H₂O

LiPO₄ + 3 H₂O

Li(PO₄)₃ + 3 H₂O

BOY + La + N₂

10.

In a titration, 15.5 g of oxalic acid was dissolved in a flask and neutralized with 31.2 mL of NaOH. Determine the molarity of the NaOH.

Hint: Primary standards (like oxalic acid, here) incude water in their formula. As a result, they do not absorb atmospheric water. Oxalic acid has the chemcial formula: H₂C₂O₄⋅2H₂O (so be sure to include the 2 extra water molecules).

7.88 mol/L

8.33 M

3.55 M

0.333 mol/L

11.

The name of the apparatus used for holding the titrant is__________

Conical flask

Burette

Pipette

Volumetric flask

12.

The tirant is also known as_________

Standard solution

Saturated solution

Concentrated solution

Super solution

13.

In the titration equation, M₁V₁ = M₂V₂, what is M?

Molarity

Concentration

Amount of solution

Mass of mixture

14.

Choose the indicator solutions used for acid-base titration

Phenolphtalein solution

Methyl red solution

Methyl orange solution

Fluoresceine solution

15.

A 50.0 mL sample of an acid, HA, of unknown molarity is titrated, and the pH of the resulting solution is measured with a pH meter and graphed as a function of the volume of 0.100 M NaOH added.

At point R in the titration, which of the following species has the highest concentration?

A^-

H₃O⁺

OH^-

16.

A solution of a weak monoprotic acid is titrated with a solution of a strong base, KOH. Consider the points labeled (A) through (E) on the titration curve

that results, as shown below.

The point at which the concentrations of the weak acid and its conjugate base are approximately equal is

17.

A student performs an acid-base titration and plots the experimental results in the graph above. Which of the following statements best explains the experimental findings?

A strong acid was titrated with a strong base, as evidenced by the equivalence point at pH = 7.

A strong acid was titrated with a strong base, as evidenced by the equivalence point at pH > 7.

A weak acid was titrated with a strong base, as evidenced by the equivalence point at pH > 7.

A weak acid was titrated with a weak base, as evidenced by the equivalence point at pH approximately 7.

18.

A 50.0 mL sample of an acid, HA, of unknown molarity is titrated, and the pH of the resulting solution is measured with a pH meter and graphed as a function of the volume of 0.100 M NaOH added.

Which of the following is the best particulate representation of the species (other than H₂O) that are present in significant concentrations in the solution at point U in the titration?