imagine each of the molecules shown below was found in an aqueous solution. can you tell whether the…

imagine each of the molecules shown below was found in an aqueous solution. can you tell whether the solution is acidic, basic, or neutral? molecule the solution is... explanation check

imagine each of the molecules shown below was found in an aqueous solution. can you tell whether the solution is acidic, basic, or neutral? molecule the solution is... explanation check

Answer

Explanation:

Step1: Analyze first molecule

The first molecule has a carboxyl - group ($-COOH$) which can donate a proton ($H^+$) and an ammonium - like group ($-NH_3^+$) which can also donate a proton. So the solution is acidic.

Step2: Analyze second molecule

The second molecule has an amino - group ($-NH_2$) which can accept a proton ($H^+$) and a carboxylate - group ($-COO^-$) which is the conjugate base of a carboxylic acid. The amino - group's basicity dominates, so the solution is basic.

Step3: Analyze third molecule

The third molecule has a carboxyl - group ($-COOH$) which can donate a proton ($H^+$) and an ammonium - like group ($-NH_3^+$) which can donate a proton. So the solution is acidic.

Step4: Analyze fourth molecule

The fourth molecule has an amino - group ($-NH_2$) which can accept a proton ($H^+$) and a carboxylate - group ($-COO^-$). The amino - group's basicity dominates, so the solution is basic.

Answer:

  1. acidic
  2. basic
  3. acidic
  4. basic