Question

explain ou are given us solutions of the following at 25°C. Predict whether each solution will be acidic, basic, (a) posm at, KC,H,O, The cation, K", belongs to group 1 of the periodic table and will not affect the pH. The anion, C,H,O, solution of potassium acetate --Sec . weak acid and will act as a base, making a (b) barum chlorate, Balco), The cation Therefore, belongs to grove 2 of the periodic table and will not affect the p. Thenion Co ution of bar b e s the conte base of a strong and notect the (c) ammonium hypochlorite, NH CHO The cation, NH', is the conjugate acid of a weak base and will tend to lower the pH. The anion, CIO, is the conjugate base of a weak acid and will end to raise the ph. The of CIO (2.5x10) is greater than the of NH (5.6x10-) Therefore, when ammonium hypochlorite is dissolved in more hydroxide ions will be produced than hydronium ions. Consequently, a solution of ammonium hypochote (d) aluminum iodide, All, The anion, 1 is the conjugate base of a strong acid and will not affect the pol. The cation, A . is a small metal ion with a large positive charge It acts as a Lewis acid, attracting the unshared electron pairs of watermolecules. In this interaction, the A ton puis lectron density towards and weakes the 0-H bonds of the water molecules leading to the transfer of hydrogen fons to reighboring water molecules to produce H.O' Because the concentration of Hoon increases

Answer 1

loncept: (1) The conjugate base of strong and is vay weak and the conjugale acid of strong base is very weak. n o (1) The conjugate base of weak and is relatively strong and the conjugate and of weak bare - is also relatively strong (9) K C 2 H3 02 (potassium acetale), Roll och KOH → ktheus ROH CH₃ Cool weak and CH2 100 Mat strong base weak and CH₂ COOK - 7 basic (. This in solution will be basic nature

- (6) Bal( 103 ) strug bare strong and Note: The salt tormed by the reaction of strong base and strong and is neutsal. . The solution will be neutral | (C) NHU CAO ka of N Mut = 5.6* 10 - 10 Kb If cl = 2.5x10 - 7 Note- kince both Nhut & clo are weak acids and bar respectively . We have to compare there Ka. A kb values. ko(110) ) Ka ( N Myt) More [on] ions will be for and on by dedysis ... The solution will be basic (d) Al I3 I ii the conjugate base of strong and i c HI ,. I neutral is

Alt is a large tively charged cation and acts as a lewis and line accepts election) p.e. it as accept on form water Al +3 + (120) M(OH)₂ +3 Ht sind, it will increase Ht iows in the solution Solution is avidic in nature