Practice Salt in Chemistry

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

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Quick Recap

In chemistry, a salt is an ionic compound made of cations and anions, often formed when an acid reacts with a base in a neutralization.

A salt is the ionic compound left over after the acid-base part of a reaction has made water.

Showing a random 20 of 50 problems.

Example 1

medium
How many moles of water form when 1 mol H3PO4H_3PO_4 reacts fully with KOHKOH?

Example 2

easy
Fill in: A salt is made of a positive ____ and a negative ____.

Example 3

medium
Predict the pH behavior of NH4BrNH_4Br (acidic / basic / neutral).

Example 4

easy
Name the salt formed when HNO3HNO_3 neutralizes LiOHLiOH.

Example 5

medium
What mass of KClKCl (74.5 g/mol) forms from 0.20 mol HClHCl plus excess KOHKOH?

Example 6

challenge
A 25.0 mL sample of HClHCl is neutralized by 30.0 mL of 0.100 M NaOHNaOH. Find the moles of NaCl produced.

Example 7

easy
What type of compound is a salt?

Example 8

hard
How many grams of K3PO4K_3PO_4 (212 g/mol) form when 0.30 mol H3PO4H_3PO_4 reacts fully with excess KOHKOH?

Example 9

easy
Name the salt formed from H2SO4H_2SO_4 and KOHKOH.

Example 10

medium
Worked example: when AgNO3(aq)+KBr(aq)→AgBr(s)+KNO3(aq)AgNO_3(aq) + KBr(aq) \rightarrow AgBr(s) + KNO_3(aq), the salt that precipitates is which?

Example 11

medium
How many moles of K2SO4K_2SO_4 form when 2 mol KOHKOH neutralizes excess H2SO4H_2SO_4?

Example 12

hard
35.0 mL of HClHCl is neutralized by 25.0 mL of 0.200 M NaOHNaOH. How many moles of NaClNaCl form?

Example 13

easy
Does dissolving NaClNaCl in water produce ions?

Example 14

easy
True or false: every salt is sodium chloride.

Example 15

medium
How many ions per formula unit does (NH4)2SO4(NH_4)_2SO_4 release in water?

Example 16

medium
Worked example: identify spectator ions in Pb(NO3)2+2KI→PbI2(s)+2KNO3Pb(NO_3)_2 + 2KI \rightarrow PbI_2(s) + 2KNO_3.

Example 17

medium
Identify the spectator ions in AgNO3+NaCl→AgCl+NaNO3AgNO_3 + NaCl \rightarrow AgCl + NaNO_3.

Example 18

easy
What ions does MgCl2MgCl_2 release in water?

Example 19

hard
How many grams of Na2SO4Na_2SO_4 (142 g/mol) form from 0.10 mol H2SO4H_2SO_4 plus excess NaOHNaOH?

Example 20

medium
Predict: is the salt CH3COOKCH_3COOK (potassium acetate) acidic, basic, or neutral in water?
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