Question

3. Calculate and insert the proper values to complete the following table: (818) pH pOH [H+] M [OH-] M Acidic or Basic Solution 8.21 5.79 1.78 x 10 3.70 x 10-2 4. Give definitions of an Arrhenius acid, a Bronsted-Lowry acid, and a Lewis acid. (3pts)

Answer 1

pott = 8.21 pH = 14 -pot - 14-8.21 = 5-79 pH = -log [H+ [HT] = 10 pH = 10-5-29 = 1.622x100m -14 [H] L04-1 - 1-0 K10 lox014 10x1014 [OH-] = --6-2X10M 1-622x106 [HT] pH =5.79 pH <7 Acidic ② pH= 5.29 pOH = kepH = 14-5-79= 8.21 polt = -08 [OH-] [OH-] = 10 por in-poh = 10 8.21 = 6.2x10rM . loxio 14 CH+] = 10 X10 14 -=1-6x106m [ot] 6-2x159 pH <7 : Ardic LOH-] = 1-78 X109M pOH = -109 20H) = -10g (1-78 x179) = 8.75 pH = 14- pOH = 14-8-75=5.25 pH = -log, C#+] [HT] = 10-pH = 10 5.25 = 5-62x106m pH = 5.25 pH <7: Acidic 10

4 [H+] = 3.781012 pH = -log [ht] = -10g (3-7x10 12) = 11:43 polt=14-pH = 14-11:43 = 2.57 polt = -log [OH-] 10 [OH-] = 10-POH = 10 2.57 = 2.69X103 pH = 11:43 pt>= Basic To Arrhenius acide which dissolved in water acid EX: HCl give ttl ions when are called Arrhenius- Bronsted-Lowry. Acid: proton donor is called Bronsted- Lowery acid: EX: Hol Lewis aard electron pair aceptors is called Lewis acid

Formulas [Hot] = 10-pH [OH-] = 10-poh pH = -log [Hz ot pOH = -108 20H] ph+ port=14 [Hot] [oH] = 10x1014 pht=7= Neutral play: Acidic pH >7: Basic Eat Loll [HT] = [Hot