how do i get the PH of a solution from it's concentration?

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how do i get the PH of a solution from it's concentration?

2007-01-15 14:37:27 · 3 answers · asked by Frankly 2 in Science & Mathematics ➔ Chemistry

3 answers

take the -log[concentration]

2007-01-15 14:42:14 · answer #1 · answered by Taras 2 · 0⤊ 0⤋

The pH is the negative base 10 log of the H or H3O+ concentration. I hope you understand the math, otherwise it is too much to explain here.

Examples: conc. of H is 1 x 10E-1 then pH is 1
conc. of H is 1 x 10E-7, the pH is 7

keep in mind that conc of H and OH will multiply to 1 x 10E-14

2007-01-15 22:44:38 · answer #2 · answered by reb1240 7 · 0⤊ 0⤋

Equation for pH:

pH = -log [H+]

[ ] brackets mean concentration of the H+ ion.
"log" is a function on your calculator.

2007-01-15 22:41:32 · answer #3 · answered by Anonymous · 0⤊ 0⤋