Volume of NaOH, mL; pH
0; 2.88
5; 4.15
10; 4.58
12.5; 4.76
15; 4.93
20; 5.36
24; 6.14
24.9; 7.15
25; 8.73
26; 11.29
30; 11.96
Just from this data, how can I find pH at the equivalence point, Ka, and pKa (actually just need to know how to find one of the two Ka or pKa and I can get the other)
please
2007-01-16 12:25:55 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
Looking at your data, the equivalence point will be close to pH of 7. That would seem to be at 24.9 ml.
2007-01-16 12:32:49 · answer #1 · answered by reb1240 7 · 0⤊ 0⤋
i'm rusty on my chem, but can you graph them and find ka and pka by looking at the slope of the graph? if i remember right, ka is where the slope first dramatically increases and pka is the midpoint between 0 and ka? or maybe i have them reversed? check your book to be sure
2007-01-16 12:30:49 · answer #2 · answered by crow_326 3 · 0⤊ 0⤋