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Bit stuck on working this out - or if it is even possible.

I have a reservoir of solution (water/plant feed/dead flies) that is pH 6 and I want to get it to pH 6.25. Here is the information I have:

  • Size of reservoir: 50 liters
  • pH of reservoir: 6
  • Required pH: 6.25
  • Alkali/Base Stuff: Potassium Hydroxide at 50% Strength

Is there any way I can work this out to say, 15 or 20%?

Many Thanks

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closed as off topic by David Z Sep 26 '11 at 20:14

Questions on Physics Stack Exchange are expected to relate to physics within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

Hi James, welcome to Physics Stack Exchange! Sorry to disappoint on your first question, but this is about pure chemistry, not physics, which makes it off topic for this site. – David Z Sep 26 '11 at 20:15
Note that there is a Chemistry proposal on area51 which appears to be coming along, and could do with your support if you would find it helpful. – dmckee Sep 26 '11 at 20:20