Asked by heather

if a solution has a pH of 4 mix to a solution that has a pH of 9 what will be the pH of the mixed solution? will it be acidic or base? please show me how to calculate it.please i need the answer before tomorrow morning. thank you so much. I had been to other sites but i didn't understand it .please help and thank you so much!
Answered by MathMate
Assuming that there is no interaction between the two solutions, all we can say with certainty is the pH is between 4 and 9. It depends on the nature of the solutions, their concentrations and the quantities of each. A pH of 7 is neutral, so you cannot tell if it will be acidic or base either.
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