Answer to Question #88201 in General Chemistry for Gene

Question

I want to water my hydroponic plants with carbonated water to increase the level of CO2 around the roots. The carbonated water has a pH of 4.93 which is a little lower that optimum for the plants. I plan to counteract the low pH created by the carbonated water by following it's application with an application of weak water/potassium hydroxide solution to elevate the pH to approximately 7.0.
Do you think this will work? Do you think there may be a better way to accomplish this? (i.e. buffer the carbonated water with potassium hydroxide by mixing them before application).

Answer 1

Yes, you can raise the pH of the solution to 7, but this solution is impossible to feed