Chemistry calculate pH?

You dilute a diluted Hydrochloric acid-solution with water to twice volume. How did pH change ?Chemistry calculate pH?
If you reduce the concentration of H+ to half (you double the volume) the pH will increase by 0.3pH.



Example: 0.1M HCl pH = -log 0.1 = 1.0

0.05M HCl , pH = -log 0.05 = 1.3



0.0008M HCl pH = -log 0.0008 = 3.1

0.0004M HCl pH = -log 0.0004 = 3.4



It does not matter what pH or [H+] you start with, if you halve the [ H+] the pH will increase by 0.3



take any random [H+]

0.000004684 M HCl pH = 5.33

halve this

0.000002342M HCl pH = 5.63



Chech the log of 2.0 and you will see whyChemistry calculate pH?
Initial concentration of HCl is needed