which one is more stronger PH1 or PH14

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Offline taregg

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which one is more stronger PH1 or PH14
« on: 14/01/2013 12:03:18 »
for both acid and base.....

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Offline Bored chemist

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Re: which one is more stronger PH1 or PH14
« Reply #1 on: 14/01/2013 20:53:18 »
Define "stronger"
If they are solutions in water then, in one sense, they are as strong as eachother because a mixture of equal volumes of each will be (nearly) neutral.
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Offline evan_au

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Re: which one is more stronger PH1 or PH14
« Reply #2 on: 15/01/2013 10:17:49 »
Dredging my chemistry memory: For a solution of these vicious chemicals in water:
  • pH 14 (strongly alkaline, eg 1M sodium hydroxide) would have an OH- concentration of about 100, and H+ concentration of 10-14
  • pH 7 (neutral, like water) would have an H+ = OH- concentration=10-7
  • pH 1 (strongly acidic, eg 0.1M hydrochloric acid) would have an H+ concentration of about 10-1, and OH- concentration of about 10-13
  • To match the "strength" of the pH 14 solution, you would need a pH 0 solution (eg 1M HCl).
  • To neutralise a quantity of 1M NaOH (pH 14), you would need an equal quantity of a 1M HCl solution (pH 0) or 10 times the quantity of 0.1M HCl (pH 1).
  • http://en.wikipedia.org/wiki/PH
« Last Edit: 15/01/2013 11:45:54 by evan_au »

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Offline Bored chemist

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Re: which one is more stronger PH1 or PH14
« Reply #3 on: 15/01/2013 19:26:45 »
Oops!
It seems I lost track of the zeros.
Well spotted.
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