5.Hydroxides of alkaline earth elements (group 11A) are not very water -soluble. How does this affect their strenghts as bases?
7. After performing a titration, the [H+] of an acid solution was determined to be 2.44x 10 -5.
What is the pH of this solution?
2006-12-02 20:45:08 · 3 answers · asked by femylatina 1 in Environment
5) The less soluble the base, the less basic (strong) the solution. These metallic hydroxides are not strong bases therefore their pH is lower than that of strong bases.
7) pH = -log [H+]
Enter 2.44 exponent -5 in your calculator. Next hit "log" key. Finally change the sign of this answer. You now have the pH.
**most calculators use "EE" or "exp" as their exponent key. Do not take this times 10 because scientific calculators are programmed to do this automatically when you use the exponent key.
2006-12-02 20:51:17 · answer #1 · answered by physandchemteach 7 · 0⤊ 0⤋
To the terrific of my wisdom they're the comparable or a minimum of point out the comparable element. pH is a scale from 0 to fourteen that measures how lots acid or base a answer is. 7 is the pH of organic water. Values of under 7 are acidic mutually as values extra advantageous than 7 are alkaline. probably the acid-base indicator does not diploma pH yet purely exhibits if a answer is acid, alkaline or independent.
2016-12-29 20:00:50 · answer #2 · answered by mccrow 3 · 0⤊ 0⤋
not too sure about the first one...if they are not as soluble, they cannot dissolve in water very well, thus less OH- ions are produced, and they are less basic
Second qn: formula, pH = -log [H+]
pH = 4.61
2006-12-02 20:47:59 · answer #3 · answered by MyDestiny 2 · 0⤊ 0⤋