Answer :

Sure, let's solve for the conjugate acid of [tex]\( NH_3 \)[/tex].

To find the conjugate acid of a molecule, one needs to identify what the molecule would become after it accepts a proton (H[tex]\(^+\)[/tex]).

### Step-by-Step Solution:

1. Identify the base:
[tex]\( NH_3 \)[/tex] is ammonia.

2. Add a proton (H[tex]\(^+\)[/tex]) to the base:
When you add a proton to [tex]\( NH_3 \)[/tex], it gains an extra hydrogen atom.

3. Combine the proton with the base:
[tex]\[ NH_3 + H^+ \to NH_4^+ \][/tex]

By adding a hydrogen ion to ammonia, [tex]\( NH_3 \)[/tex], we get [tex]\( NH_4^+ \)[/tex].

So, the conjugate acid of [tex]\( NH_3 \)[/tex] is [tex]\( NH_4^+ \)[/tex].