Which is a strong base?
HCl
NaOH
[tex]$NH _3$[/tex]
[tex]$H _3 CO _3$[/tex]
Answer (1)
Strong bases completely dissociate into ions in water.
Identify HCl as a strong acid, NaOH as a strong base, N H 3 as a weak base, and H 3 C O 3 as a weak acid.
Compare the strength of the bases.
The strong base is N a O H .
Explanation
Understanding Strong Bases To determine which of the given compounds is a strong base, we need to understand the definitions of strong acids, strong bases, weak acids, and weak bases.
Identifying Acids and Bases
Strong Acid: A strong acid completely dissociates into ions in water. HCl is a strong acid.
Strong Base: A strong base completely dissociates into ions in water. NaOH is a strong base.
Weak Base: A weak base only partially dissociates into ions in water. N H 3 is a weak base.
Weak Acid: A weak acid only partially dissociates into ions in water. H 3 C O 3 (carbonic acid) is a weak acid.
Classifying the Compounds Based on these definitions:
HCl is a strong acid.
NaOH is a strong base.
N H 3 is a weak base.
H 3 C O 3 is a weak acid.
Determining the Strong Base Therefore, the strong base among the given options is NaOH.
Examples
Strong bases are used in many industrial processes, such as the production of paper, textiles, and soaps. For example, sodium hydroxide (NaOH), a strong base, is used in the manufacture of pulp and paper. Understanding strong bases is crucial in chemistry for predicting reaction outcomes and designing chemical processes.
