|Feb27-12, 11:44 PM||#1|
pH of HCl solution as a function of volume.
1. The problem statement, all variables and given/known data
You have a 1L of a 2M HCl solution. Assume that the HCl completely ionizes.
a) Calculate the pH of the solution right now.
b) You now add V litres of water to the solution.
Find the pH of the new dilute solution in terms of V.
2. Relevant equations
pH = -log[H]
3. The attempt at a solution
a) pH = -log(2) which is interestingly a negative number so I hope this is correct.
b) I'm not sure how you would do this part. Do we just find the new concentration in terms of V and then find the negative log of that? Don't we have to consider the autoionization of water?
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