Question

why is the ph of a 0.1 m solution of acetic acid in water higher than that of a 0.1 m solution of hcl in water? o hcl is a weaker acid than acetic acid. o hcl does not fully ionize in water, whereas acetic acid does. o acetic acid is a better buffer than hcl. o acetate (ionized acetic acid) is a strong base. o the acetic acid does not fully ionize in water, whereas hcl does.

Explanation:

HCl is a strong acid and fully ionizes in water, producing a high concentration of hydrogen ions ($H^+$), resulting in a low pH. Acetic acid is a weak acid and only partially ionizes in water, producing fewer hydrogen ions and thus a higher pH for the same concentration solution. Also, acetic - acid and its conjugate base (acetate) can act as a buffer system, while HCl is not a buffer.

Answer:

Acetic acid is a better buffer than HCl.