If a 0.1 mol/L solution is diluted to 0.01 mol/L, the:
a) concentration of hydrogen ions increases
b) pH decreases
c) acidity constant decreases
d) the acidity constant does not change
I would think the ph decreases? no?
Let's see. If we dilute 0.1(pH = 1) to 0.01 (pH = 2), is that a decrease in pH? :-)
I think it can't be a, b, or c.
Yes, you are correct. When a solution is diluted, the concentration of the solute decreases while the volume of the solution increases. In this case, the 0.1 mol/L solution is diluted to 0.01 mol/L.
The pH of a solution is a measure of its acidity or alkalinity. It is a logarithmic scale that indicates the concentration of hydrogen ions (H+) in a solution. As the concentration of H+ ions decreases, the pH increases, indicating a more alkaline or basic solution. Conversely, as the concentration of H+ ions increases, the pH decreases, indicating a more acidic solution.
In this scenario, when a 0.1 mol/L solution is diluted to 0.01 mol/L, the concentration of H+ ions decreases. Therefore, the pH of the solution decreases, resulting in a more acidic solution. This means that option (b) "pH decreases" is the correct answer.