Respuesta :
The given question is incomplete. The complete question is :
In each row check off the boxes that apply to the underlined reactant. The underlined reactant acts as a... (check all that apply)
1. [tex]HCH_3CO_2(aq)+NH_3(aq)\rightarrow CH_3COO^-(aq)+NH_4^+(aq)[/tex]
here underlined is [tex]HCH_3CO_2[/tex]
A. Brønsted-Lowry acid
B. Brønsted-Lowry base
C. Lewis acid
D. Lewis base
2. [tex]BH_3(aq)+NH_3(aq)\rightarrow BH_3NH_3(aq)[/tex]
Here underlined is [tex]NH_3[/tex]
A. Brønsted-Lowry acid
B. Brønsted-Lowry base
C. Lewis acid
D. Lewis base
3. [tex]HNO_2(aq)+C_2H_5NH_2(aq)\rightarrow NO_2^-(aq) + C_2H_5NH_3^+(aq)[/tex]
Here underlined is [tex]C_2H_5NH_2[/tex]
A. Brønsted-Lowry acid
B. Brønsted-Lowry base
C. Lewis acid
D. Lewis base
Answer: 1. Brønsted-Lowry acid
2. Lewis base
3. Brønsted-Lowry base
Explanation:
According to the Bronsted Lowry conjugate acid-base theory, an acid is defined as a substance which donates protons and a base is defined as a substance which accepts protons.
According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.
1. [tex]HCH_3CO_2(aq)+NH_3(aq)\rightarrow CH_3CO^{2-}(aq)+NH_4^+aq)[/tex]
As [tex]HCH_3CO_2(aq)[/tex] is donating a proton , it acts as a bronsted acid.
2. [tex]BH_3(aq)+NH_3(aq)\rightarrow BH_3NH_3(aq)[/tex]
As [tex]NH_3[/tex] contains a lone pair of electron on nitrogen , it can easily donate electrons to [tex]BH_3[/tex] and act as lewi base.
3. [tex]HNO_2(aq)+C_2H_5NH_2(aq)\rightarrow NO_2^-(aq) + C_2H_5NH_3^+(aq)[/tex]
As [tex]C_2H_5NH_2(aq)[/tex] is accepting a proton , it acts as a bronsted base.
