Answer to Question #184311 in General Chemistry for feag

Question #184311

A solution is prepared by mixing equal volumes of 0.20M HC2H3O2 and 0.40M NaC2H3O2. Which of the following correctly describes what occurs if a small amount of HCl (aq) or NaOH (aq) is added? Explain

  • If NaOH (aq) is added, the pH will increase only slightly because the OH ions will react with HC2H3O2 molecules.
  • If HCl (aq) is added, the pH will decrease only slightly because the H+ ions will react with HC2H3O2 molecules.


  • If HCl (aq) is added, the pH will increase only slightly because the Cl, −, ions will react with C, 2, H, 3, O, 2, −, ions.
  • If NaOH (aq) is added, the pH will decrease only slightly because the OH ions will react with C2H3O2 ions.
1
Expert's answer
2021-04-27T07:48:34-0400
  • If HCl (aq) is added, the pH will decrease only slightly because the H+ ions will react with HC2H3O2 molecules.


The difference lies in there ionization. Hydrochloric acid is a strong acid which means it gets completely ionized into H+ & Cl- which in turn, means that all the H+ present in HCl will be present in solution now. But in case of acetic acid it is not so. As it is a weak acid it don't get ionized completely.


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS