1.15
The pH of a solution is a measure of the molar concentration of hydrogen ions in the solution and as such is a measure of the acidity or basicity of the solution. The letters pH stand for power of hydrogen and numerical value for pH is just the negative of the power of 10 of the molar concentration of H+ ions.
pH = -log(hydronium concentration) [Hydronium is H3O.-log(1 x 10-9) = 9
The solution to this problem is simple if you just work backwards. pH= -log10[H+] You already know what your pH is, so write your equation like this: 4.3= -log10[H+] An understanding of basic logarithm properties lets you know that you can rewrite the equation like this: 10-4.3= [H+] 5.0 *10-5 = [H+]
H + concentration, Molarity, = 2.3 X 10 -6 M. You need to be clear in science as not everyone will figure out what you mean.- log(2.3 X 10 -6 M)= 5.6 pH======
- log(7.08 X 10 -12) = 11.1 pH ========
- log(2.3 X 10 -12 ) = 11.6 pH -----------------very little H + concentration in this solution.
11.15
11.15
11.15
100 times. (10^2)
- log(2.3 X 10 -12 ) = 11.6 pH -----------------very little H + concentration in this solution.
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pH 2
Since pH is a logarithmic scale, each increase (or decrease) by 1 means 10 times, so the change of pH in a solution from 10 to 11 would be 10 times, 11 to 12 would be 10 times, and 12 to 13 would be 10 times, and (10)(10)(10) is 1000, so a solution with pH 13 is 1000 times more basic then a solution with pH 10
11.15
2.3 X 10 -12 ? ( signs are not showing up on this site lately ) - log(2.3 X 10 -12 ) = 11.6 pH =============not much H +