Identify each of the following as an acid or a base: (10.1)
- H2SO4
- RbOH
- Ca(OH)2
- HI
To identify: Each of the following as an acid or base.
- H2SO4
- RbOH
- Ca(OH)2
- HI
Answer to Problem 10.71UTC
Solution:
- H2SO4 − Acid.
- RbOH − Base.
- Ca(OH)2 − Base.
- HI − Acid.
a. Given: H2SO4
Explanation of Solution
According to Arrhenius concept, substance that dissociates in water to give H+ ions or increases the concentration of H+ ions is said to be acidic in nature.
So, H2SO4is an acid as it gives H+ ions in aqueous solution.
b. Given: RbOH
According to Arrhenius concept, substance that dissociates in water to give OH- ions or increases the concentration of OH- ions is said to be basic in nature.
So, RbOH is a base as it gives OH- ions in aqueous solution.
c. Given: Ca(OH)2
According to Arrhenius concept, substance that dissociates in water to give OH- ions or increases the concentration of OH- ions is said to be basic in nature.
So, Ca(OH)2is a base as it gives OH- ions in aqueous solution.
d. Given: HI
According to Arrhenius concept, substance that dissociates in water to give H+ ions or increases the concentration of H+ ions is said to be acidic in nature.
So, HI is an acid as it gives H+ ions in aqueous solution.
Thus H2SO4 and HI are acids whereas RbOH and Ca(OH)2 are bases.
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