2007-04-02 14:59:04 · 9 answers · asked by ÐÂ Õ 1 in Science & Mathematics ➔ Chemistry
pH is a scale of acidity of a solution. It is found by taking the negative of the log of H+ concentration.
pOH is the scale of alkalinity of solution. Found by taking the negative of the log of OH- concentration.
pH = 14 - pOH.
2007-04-02 15:03:03 · answer #1 · answered by Jack 3 · 0⤊ 0⤋
pH is defined as -Log [H+] in aqueous solution. This is a more useful way of describing acidity (a number between 1 and 7) or high OH- levels (a number between 7 and 13). Also, chemists have had a reputation of being lousy in math, so they avoid exponents. Since these levels are linked in water [H+][OH-]=1x10-14, pH of 1 or 14 indicate 1 g-ion/L H+ or OH- respectively.
2007-04-02 15:10:32 · answer #2 · answered by cattbarf 7 · 0⤊ 0⤋
Hi,
pH is the negative logarithm of the Hydrogen ion concentration
i.e. - log ( [H+])
in water, [H+] is 10^-7, and so the pH of water is 7
The pH of acids is less than 7, and the pH of bases is larger than 7. pH 7 is considered neutral.
2007-04-02 15:04:07 · answer #3 · answered by Anonymous · 0⤊ 0⤋
it's a measure of Alkalinity or acidity.
Pure distilled water is pH 7, as acidity increases, pH drops. Strong acids have a pH of 1 or 2.
As Alkalinity increases, pH rises, strong bases have a pH of 12 or 13.
http://en.wikipedia.org/wiki/PH
2007-04-02 15:03:40 · answer #4 · answered by Anonymous · 0⤊ 0⤋
pH is a type of scale which can test whether a substance is an acid or a base
2007-04-02 15:01:08 · answer #5 · answered by ♥~~Hey~~♥ 3 · 0⤊ 0⤋
pH is how acidic (how much H+ there is) in a solution.
2007-04-02 15:01:21 · answer #6 · answered by darcy_t2e 3 · 0⤊ 0⤋
pH is the negative logrithmic scale of hydrogen ions in moles per liter.
2007-04-02 15:08:43 · answer #7 · answered by glen_loves_fun 4 · 0⤊ 0⤋
Level of acidity
2007-04-02 15:07:03 · answer #8 · answered by Saffy 2 · 0⤊ 0⤋
I can say it is the alkalinity and acidity of a substance.
2007-04-03 01:23:21 · answer #9 · answered by Anonymous · 0⤊ 0⤋