Answer
(a) No; Ammonium chloride uses the common-ion effect to lower the PH value.
(b ) yes, but only slightly because Diethylamine is a somewhat stronger base but only a rather small amount is being added.
(c) No; being a strong acid, HCl will neutralize some of the ammonia; that produces an aqueous solution of ammonia and ammonium chloride.
(d) No; since the added aqueous ammonia is more dilute than the 0.10 M NH3(aq.), the overall solution will be 0.075 M NH3(aq.).
(e)yes; Ca(OH)2(s) is a strong base; accordingly, it raises the PH value.
Work Step by Step
(a) No; Ammonium chloride uses the common-ion effect to lower the PH value.
(b ) yes, but only slightly because Diethylamine is a somewhat stronger base but only a rather small amount is being added.
(c) No; being a strong acid, HCl will neutralize some of the ammonia; that produces an aqueous solution of ammonia and ammonium chloride.
(d) No; since the added aqueous ammonia is more dilute than the 0.10 M NH3(aq.), the overall solution will be 0.075 M NH3(aq.).
(e)yes; Ca(OH)2(s) is a strong base; accordingly, it raises the PH value.
