10 A 25 0 Ml Sample Of 0 300 M Methylamine Ch3nh2 Pkb 3 36 Is Titrated With 0 150 M Hci Solution Calculate The Ph 1 (19.3 KiB) Viewed 15 times
10 A 25 0 Ml Sample Of 0 300 M Methylamine Ch3nh2 Pkb 3 36 Is Titrated With 0 150 M Hci Solution Calculate The Ph 2 (45.17 KiB) Viewed 15 times
10) A 25.0 mL sample of 0.300 M methylamine (CH3NH2, pKb = 3.36) is titrated with 0.150 M HCI solution. Calculate the pH of the solution after the following volumes of HCl have been added. (For each part remember to ask yourself these questions. What units am I working in? What does the pH depend on? Does my answer make sense?) (8pts) a. 0.0 mL b. 25.0 mL c. 50.0 mL d. 75.0 mL
On the axes below graph a titration curve for problem 10. Next to each letter give numerical values for each region or point, then label the points on the curve below. (Spts) a. the equivalence point b. pH - Ka c. pH depends only on the methylamine d. pH depends only CH3NH;* (methyl ammonium cation) e. pH depends only on the amount of excess strong acid added Titration Curve pH 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 0 NWU 10 20 30 40 50 60 70 80 Volume of HCl added (mL)
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