Question

Titration of 100.00mL of a 0.1000M solution of a strong acid HCl with 0.100M NaOH solution. Determine the pH at the following points and sketch curve a) before addition of NaOH c) after addition of 20.0 ml NaOH e) after addition of 50.Oml NaOH e) after addition of 100 ml NaOH b) after addition of 10.0mL. NaOH d) after addition of 30.0 ml NaOH f) after addition of 80.Oml NaOH h) after addition of 110 ml NaOH Titration of 100 mls 0.1 M HCI Hd 0 + 0 20 40 60 80 100 120 mis 0.1 M NaOH added

Answer 1

Het and Na OH in i we taleulate moles ample e Fer He 01x 100 1000 Dn 00 mL, TO moles NAOH mo l 9n mL Tsent in uch 04moles anu For He to-4meles Po NAOH a) Befere adding Naot PH b Aften addling 1o mi NaH 0-3 moles Ne ofmoles f Nao added Moles 0 01-0001 0009 s Molanity :. D09 X1000 : to he Volum 0 D082 (M) PH:10 ATler adding 20 mL NAOH NO of moles o Nao added melu Rx10-3 Noles Hd left = Hol aw ty 1 X1000 130 to tal v 6\um: 190 PH=KG 29

a) ti aadin NA me14x Hotan ly 16 0.p04 1000 ) 160 25() PH Nan e)fi adAing Soo m Netum 216 Hu be 5OXO S210 62 PH Nao Ading Holes of Naol 1Hu H4 RYUSA NO watn PH PH Thus NAO Attm ad aing H Ysent total Velu 4 1 o10-4 x 210 Molu fNA0H 0 021 12-64 PH 4)Atn addin e0 mL Naoh 30 0K0 Strngth .(M) 130 PH 12.36

Plot 12 PH 10 uivalenu boint md of NAOH added