Question

how can you decrease the pH of a solution of pH 12​

Answer 1

Answer:

How to reduce the PH of a solution?

If the pH is higher than desired, adjust it using a hydrochloric acid solution. If the pH is lower than desired, adjust it using sodium hydroxide solution. Fill a plastic pipette with the correct solution, add a few drops to the solution in the beaker and wait at least 20 seconds before reading the pH on the meter.

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Explanation:

Answer 2

Answer: We can decrease pH value of a solution by adding Acid.

Explanation:

First you have to know that how much pH value you want to decrease of the solution. If you want to neutralize a solution which have pH value 12 then you have to add acid whose pH value should be 2.