Today teacher is teaching about pH.pH is means the power of acid and alkali.I ask the teacher why the p must be small letter and H must be capital letter.My teacher don't know the answer.So have someone help to solve the question.
2006-08-19 02:50:13 · 10 answers · asked by kerk 1 in Science & Mathematics ➔ Chemistry
The concept of pH was developed by S.P.L. Sørensen in 1909. IT comes from Latin meaning "pondus hydrogenii".
In English, pH stands for "hydrogen power", or "power of hydrogen", or "potential of hydrogen".
pH is a measure of the activity of hydrogen ions in a solution, and Hydrogen in the periodic table is "H".
So there's the connection.
2006-08-19 03:06:24 · answer #1 · answered by Anonymous · 2⤊ 1⤋
The reason for pH has been explained in a couple of the answers above. However there is a reason why you need to be specific when writing it, since Ph means something else completely in chemistry - Ph is the abbreviation for "phenyl", which describes a substituted benzene.
2006-08-19 11:58:51 · answer #2 · answered by Anonymous · 0⤊ 0⤋
it because it refers to the activity of hydrogen ions in a solution and stands for hydrogen power. Since in chemistry all elements start with a captial letter, the H is a capital, "power" is not an element and should not have be a capital.
its written backwards pH, not Hp, because it comes from the french pouvoir hydrogène
2006-08-19 09:59:56 · answer #3 · answered by a tao 4 · 6⤊ 0⤋
p (small) in chemistry is used widely. It means
-log.
The "H" of pH is the symbol of the hydrogen atom, which needs to be writen in capital letter.
2006-08-19 11:22:51 · answer #4 · answered by DONN 3 · 0⤊ 0⤋
pH was discovered by Sorenson, A French Man and he named it puissance d'Hydrogen (A French Name). Hope this info helps..
2006-08-19 15:12:57 · answer #5 · answered by M.S.N. 2 · 0⤊ 0⤋
pH stands for "power of Hydrogen".
2006-08-19 10:28:29 · answer #6 · answered by star123 2 · 0⤊ 0⤋
Because the lowercase p means the
-log (something)... pH means -log (H) the H is the Hydronium ion concentration.....Or pOH means -log (OH) the OH is the hydroxide ion concentration.
2006-08-19 10:01:22 · answer #7 · answered by f21ck 3 · 3⤊ 2⤋
cause pH is like that and it cant be changed
2006-08-19 10:02:16 · answer #8 · answered by Anonymous · 0⤊ 2⤋
coz the p is lower case and the h is capital
2006-08-19 09:55:19 · answer #9 · answered by kimfoo_ong 2 · 0⤊ 3⤋
pH is log( conc. of [H]+ )
2006-08-19 11:14:27 · answer #10 · answered by ani 2 · 0⤊ 0⤋