[3saster]

Let's say we have 50 ml of a liquid with a Ph of X and 100 ml of a liquid with a Ph of Y. If we mixed these two together into a single 150 ml solution, given no other information, can we calculate the Ph of the new solution? If so, how?

[Hunter2]

If there is no reaction between X and Y and no further dissociation if diluted, yes. The pH gives the concentration of H⁺. You calculate the amount of each solution and later you calculate back with the volume of the mixture.