Question

SUY BUUKIRS People Tab Window Help 02 x Q Among HCIO4, HCIO3, HCIO22 x Label Acidic or Basic for each x + webapps/assessment/take/take.jsp?course_assessment_id=_1410569_1&course_id=_1839362_1&c Remaining Time: 2 hours, 24 minutes, 48 seconds. Question Completion Status: -> Moving to the next question prevents changes to this answer. Question 6 Label Acidic or Basic for each aqueous solution formed by the following salt. A. Naci B, KCN C. NaNO3 D NH4NO3 Answer as A-basic B-basic C-neutral..... (These are answer format samples, they do NOT represent com TTT Arial 3 (12pt) · TE E 5.025 Path: P A Moving to the next questionnement changes to this

Answer 1

• Please note that only the anions of weak acids and cations of weak bases undergo hydrolysis in water and cause the pH to change.

• NaCl is neutral in aqueous medium since it's a salt of strong acid, HCl and strong base, NaOH.
• KCN is a salt of strong base, KOH and weak acid, HCN. So CN- ion undergoes hydrolysis to give a basic solution (see equation 1).
• NaNO3 is a salt of strong acid, HNO3 and strong base, NaOH. So it forms a neutral solution.
• NH4NO3 is a salt of strong acid, HNO3 and weak base, NH4OH where ammonium ion hydrolyses in water to give an acidic solution (see equation 2).

• Hydo su ở KCN ( L) - ēN (aq) + H₂O (1) * HEN (aq) + ÕH (aq) basic Hydrolysis of NH4NO3 (NH4)- Hy (aq) + H20 (1) = NHYOH (aq) + H+ (aq) acidic.