A) 0
B) -1
C) 10
D) infinity
I believe its B, can't be negative? because of the -log [H+] equation, the -log turns the answer into a positive. Is it correct?
2006-09-20 16:20:24 · 13 answers · asked by hmmm 2 in Science & Mathematics ➔ Chemistry
Heres what it says in the book: "Further more the term [H+] in equation 15.4 (ph = -log [H+]) pertains only to the numerical part of the expression for hydrogen ion concentration, for we cannot take the log of the units. Thus, like the equilibrium constant, the pH of a solution is a dimensionless quantity.
Going by the last line of that, I would have to say that the book says that it can be infinity? But I dont know it confuses me.
2006-09-20 16:26:49 · update #1
It also does say in the book that it can in fact be less then 1, but it doesnt say it cannot be less then 0 or it can be less than 0. But judging by the responses, I would guess it cannot be infinity. The only thing it says in the book close to this is that ph is a dimionless quantity, so does that mean it can be infinity? I would still hvae to say it cant be judging by everyones answers, I hate this text book.
2006-09-20 16:32:26 · update #2
pH is expressed 0-14 always,so B & D are wrong !
hope you got ur answer.
2006-09-20 16:27:00 · answer #1 · answered by Aizen 3 · 0⤊ 3⤋
D is the answer.
All pH's fall within the range of -2 to 16... a strong acid can be negative when their molarity is greater than 1M... ex sulfuric acid concentrated is appx 18M (and is about the highest acid concentration I know of, other than superacids...). Same goes for strong bases as they can behave in the same manner, taking their pH up to appx 15.
2006-09-20 23:32:50 · answer #2 · answered by piercesk1 4 · 1⤊ 0⤋
is it a multiple answer question? because it can't be -1 or infinity. the pH scale runs from 0(acidic) to 14(basic)
2006-09-20 23:49:21 · answer #3 · answered by leebee 2 · 0⤊ 1⤋
Don't let people whose knowledge of shock treating a pool makes them think they're chemistry majors fool you. It can't be infinity, Because, that high of a pH would evaporate the globe, not to mention, cause a paradox.
2006-09-20 23:30:27 · answer #4 · answered by mctfelton 2 · 0⤊ 1⤋
D) infinity
Very Strong acids have negative pHs.
Silly Chick, Warren M and special-chem...don't know what they are talking about.
The scale for normal everyday acids/alkalines runs from 1-14, but it is possible to go outside these areas by strengthing the solution.
Trust me, I know what I'm talking about.
2006-09-20 23:23:29 · answer #5 · answered by Anonymous · 1⤊ 1⤋
-1 and infinity
2006-09-20 23:57:37 · answer #6 · answered by Munna Bhai 2 · 0⤊ 1⤋
The answer is D. The pH scale runs from -10 to +10. Hope that helps.
2006-09-20 23:22:12 · answer #7 · answered by Anonymous · 0⤊ 4⤋
d all the rest are possible -1 is possible an example is acid mine runoff, with a molar concentration of 3981 M and a pH = -3.6
2006-09-20 23:26:16 · answer #8 · answered by RichUnclePennybags 4 · 1⤊ 2⤋
infinity
2006-09-20 23:21:10 · answer #9 · answered by Anonymous · 1⤊ 0⤋
It can't be Zero, negative one, or infinity.
It can be 10.
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Warren above me is incorrect.
The pH scale runs from 0-14 in water and cannot equal 0 or 14. 7 is neutral.
2006-09-20 23:22:40 · answer #10 · answered by special-chemical-x 6 · 1⤊ 2⤋