Answer to Question #185852 in General Chemistry for sadfd

Question

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.

Answer 1

If a small amount of NaOH is added, the pH decreases very slightly.

If HCl is added, the H+ ions react with CH3COOH ions 1.00 mole of ammonium chloride to form an aqueous solution with a total volume of the solution.