Practice Titration in Chemistry

Use these practice problems to test your method after reviewing the concept explanation and worked examples.

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Quick Recap

A lab technique for finding an unknown solution concentration by gradually adding a solution of known concentration until the reaction is complete.

Slowly adding a known solution to an unknown one until the reaction is just complete — the volume used reveals the concentration.

Showing a random 20 of 50 problems.

Example 1

medium

How many moles of

HCl

are in

40\text{ mL}

0.25\text{ M}

HCl

Example 2

medium

15.0\text{ mL}

H_2SO_4

requires

40.0\text{ mL}

0.150\text{ M}

NaOH

to fully neutralize. Find the acid concentration.

Example 3

medium

0.250\text{ g}

sample of

KHP

(

M = 204\text{ g/mol}

) is titrated with

NaOH

, requiring

22.0\text{ mL}

(

1:1

). Find

[NaOH]

Example 4

medium

28.5\text{ mL}

0.120\text{ M}

NaOH

neutralizes

25.0\text{ mL}

of acetic acid (

1:1

). Find

[CH_3COOH]

Example 5

easy

40\text{ mL}

0.10\text{ M}

HCl

needs how many mL of

0.20\text{ M}

NaOH

(

1:1

Example 6

medium

25\text{ mL}

H_2SO_4

is neutralized by

50\text{ mL}

0.10\text{ M}

NaOH

. Find the acid concentration. (

H_2SO_4 + 2NaOH \rightarrow Na_2SO_4 + 2H_2O

)

Example 7

easy

True or false: the endpoint and equivalence point of a titration are always identical.

Example 8

medium

15\text{ mL}

0.20\text{ M}

NaOH

neutralizes

30\text{ mL}

of acetic acid (

1:1

). Find the acid concentration.

Example 9

medium

32.0\text{ mL}

0.250\text{ M}

H_2SO_4

requires

V

mL of

0.400\text{ M}

KOH

at equivalence (

1:2

). Find

V

Example 10

easy

A titration uses

30\text{ mL}

0.10\text{ M}

NaOH

to neutralize

20\text{ mL}

HCl

. Find the

HCl

concentration (

1:1

Example 11

medium

What volume of

0.200\text{ M}

HCl

is needed to neutralize

30.0\text{ mL}

0.100\text{ M}

Ba(OH)_2

? (

Ba(OH)_2 + 2HCl \rightarrow BaCl_2 + 2H_2O

)

Example 12

medium

0.500\text{ g}

sample of

KHP

(

M=204\text{ g/mol}

) is titrated with

NaOH

. How many moles of

NaOH

are needed (

1:1

Example 13

hard

30.0\text{ mL}

0.150\text{ M}

HCl

is mixed with

20.0\text{ mL}

0.200\text{ M}

NaOH

. Find the pH of the resulting solution.

Example 14

easy

M_AV_A = M_BV_B

, if both volumes are equal, how do the concentrations compare (

1:1

Example 15

medium

50.0\text{ mL}

0.0500\text{ M}

H_2SO_4

needs how many mL of

0.100\text{ M}

NaOH

at equivalence (

1:2

Example 16

easy

20\text{ mL}

0.10\text{ M}

acid is titrated with

0.10\text{ M}

base (

1:1

). What volume of base reaches equivalence?

Example 17

easy

The ____ point is where the indicator just changes color; the ____ point is where moles of acid equal moles of base.

Example 18

easy

In a

1:1

acid-base titration,

25\text{ mL}

0.10\text{ M}

acid is neutralized by

0.20\text{ M}

base. What volume of base is needed?

Example 19

easy

At the equivalence point of a weak acid - strong base titration, is the pH less than, equal to, or greater than 7?

Example 20

hard

A 0.450 g sample of impure

KHP

(

M = 204

) requires

20.5\text{ mL}

0.100\text{ M}

NaOH

(

1:1

). Find the percent purity.

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Related Concepts

Concentration Neutralization Mole pH