Practice Neutralization 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 chemical reaction in which an acid and a base combine to produce water and an ionic compound called a salt, effectively canceling out the acidic and basic properties of the reactants (e.g., $\text{HCl} + \text{NaOH} \to \text{NaCl} + \text{H}_2\text{O}$ ).

Acid + Base → they cancel each other out, making water and salt.

Showing a random 20 of 50 problems.

Example 1

medium

\text{HCl}+\text{NaOH}

, write the net ionic equation.

Example 2

challenge

30.0\,\text{mL}

of HCl is fully neutralized by

20.0\,\text{mL}

0.150\,\text{M}

NaOH. Find the HCl concentration.

Example 3

easy

Balance:

\text{H}_2\text{SO}_4+\text{NaOH}\rightarrow\text{Na}_2\text{SO}_4+\text{H}_2\text{O}

Balance the equation: supply the missing coefficients for NaOH and H₂O

Example 4

easy

Write the neutralization reaction between sulfuric acid (

\text{H}_2\text{SO}_4

) and potassium hydroxide (

\text{KOH}

Diprotic acid H₂SO₄ needs 2 mol KOH for complete neutralization

Example 5

easy

In neutralization, which ion comes from the base in the salt?

Example 6

hard

A student titrates an unknown HCl with

0.100\,\text{M}

NaOH. If

30.0\,\text{mL}

acid needs

24.0\,\text{mL}

base, find the HCl concentration.

Example 7

medium

How many mL of

0.50\,\text{M NaOH}

are needed to neutralize

25\,\text{mL}

0.30\,\text{M HCl}

Example 8

medium

40.0\,\text{mL}

0.200\,\text{M}

HCl is mixed with

40.0\,\text{mL}

0.100\,\text{M}

NaOH. Which is in excess, and by how many moles?

Example 9

medium

Write the balanced equation for neutralizing

\text{H}_2\text{SO}_4

with

\text{Ca(OH)}_2

Example 10

medium

What volume of

0.20\,\text{M}

NaOH neutralizes

30.0\,\text{mL}

0.10\,\text{M}

HCl?

Example 11

easy

\text{HCl}+\text{NaOH}\rightarrow\text{NaCl}+\text{H}_2\text{O}

, name the salt formed.

Example 12

challenge

25.0\,\text{mL}

0.200\,\text{M}

\text{H}_2\text{SO}_4

is titrated with

0.100\,\text{M}

NaOH. What volume of NaOH is needed?

Example 13

hard

What mass of

\text{Mg(OH)}_2

neutralizes

50.0\,\text{mL}

0.500\,\text{M}

HCl? (

M_{\text{Mg(OH)}_2} = 58.3\,\text{g/mol}

)

Example 14

medium

How many moles of NaOH are needed to neutralize

0.50\,\text{mol}

\text{H}_3\text{PO}_4

fully?

Example 15

medium

Calculate the molarity of HCl if

25.00\,\text{mL}

is neutralized by

32.50\,\text{mL}

0.100\,\text{M}

NaOH.

Example 16

easy

Write the balanced equation for neutralizing

\text{HBr}

with

\text{NaOH}

Example 17

challenge

100\,\text{mL}

0.100\,\text{M}

HCl is mixed with

100\,\text{mL}

0.0500\,\text{M}

Ba(OH)

_2

. Find the pH of the resulting solution.

Example 18

hard

10.0\,\text{g}

\text{CaCO}_3

reacts with excess HCl. How many moles of HCl are needed to fully neutralize the carbonate? (

M = 100\,\text{g/mol}

)

Example 19

medium

What is the molar ratio of

\text{HNO}_3

\text{Ba(OH)}_2

in their neutralization?

Example 20

medium

After complete neutralization of

0.10\,\text{mol}

HCl with

0.10\,\text{mol}

_3

, will the resulting NH

_4

Cl solution be acidic, basic, or neutral?

NH₄Cl (strong acid + weak base salt) hydrolyzes to give an acidic solution with pH < 7

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Related Concepts

Acid Base Salt Titration