Some quick chemistry questions
Is it possible to get a neutral solution by mixing these 2 solutions:
one with pH1 and the other with pH4
one with pH4 and the other with pH8
2007-01-11 07:51:42 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
With the first pair of solutions, it is not possible to get a neutral solution, since a pH of 7 does not lie anywhere between a pH of 1 and a pH of 4.
It is possible to get a neutral solution with the second pair of solutions, if they are mixed in the appropriate proportions. The simplest case to calculate would be where the first was a very dilute solution of a strong acid and the second a very, very dilute solution of a strong alkali. For instance, one could use 10^(-4)M hydrochloric acid and 10^(-6)M sodium hydroxide. Since the NaOH is 100 times as dilute as the acid, mixing one volume of the acid solution with 100 volumes of the alkaline solution will give a neutral solution.
Of course, if a weak acid and/or a weak alkali are used, or if buffer solutions are used, the calculation becomes much more complicated.
2007-01-12 05:00:15 · answer #1 · answered by deedsallan 3 · 1⤊ 0⤋
It depends of the quantity of each solution. For example, if you put a lot of pH 4 solution into a pH 8 solution you'll get an acid solution, not a neutral. So, you got to put a little pH=4 solution to adjust the pH=8 solution to value 7. You can make it by ear (measuring the pH till you get what U want) or calculate the quantities of each solution.
2007-01-11 09:15:45 · answer #2 · answered by Lu 2 · 0⤊ 0⤋
Since neutral is defined as pH 7, you can not get a pH 7 solution by mixing a pH 1 and pH 4 solution together but you can get a pH 7 solution by mixing a pH 4 and pH 8 solution together.
2007-01-11 07:57:21 · answer #3 · answered by RICHARD M 1 · 2⤊ 0⤋
pH1 & pH4 No!!! (Both too acidic)
pH4 & pH8 Yes!!! (one is acidic and one is alkaline)
Neutrality is pH7
2007-01-14 09:03:30 · answer #4 · answered by lenpol7 7 · 0⤊ 0⤋
No to the first one and yes to the second one. PH7 is neutral
2007-01-11 07:59:46 · answer #5 · answered by Dionysia C 2 · 1⤊ 0⤋
only with the second, but as pH scale is a log scale it is not as easy as a simple average
2007-01-11 08:30:26 · answer #6 · answered by gramps 3 · 1⤊ 0⤋
the first one--no
second one --yes
2007-01-11 07:57:33 · answer #7 · answered by Anonymous · 1⤊ 0⤋
no
2007-01-11 07:59:31 · answer #8 · answered by Richard Bricker 3 · 0⤊ 1⤋