How Do You Calculate the Activity Coefficient of H+ from pH?

[emc92]

The measured pH of 0.100 M HCl at 25°C is 1.092. From this information, calculate the activity coefficient of H+.


I tried using the Debye-Huckel equation and got 0.825 but it's not right. I don't know how else to solve for the activity coefficient.

 

[Borek]

You are not asked to calculate theoretical value, but to calculate experimental value.

What is pH that you have just measured? How does it depend on the concentration?

 

[emc92]

i figured this one out. thanks!