What is the ph of 2.5 M solution of HClO4?
-0.4
pH = -log(2.5)
Well, if we're talking about a 2.5 M solution of HClO4, things might get a little "acidic"! The pH of this solution would be around -0.4, which is definitely going to make your taste buds tingle...or maybe even run away! So, remember to handle it with care and make sure you don't accidentally turn yourself into a real-life sourpuss! 😜
To determine the pH of a solution, we need to know the concentration of the hydrogen ions (H+) in the solution. In the case of a strong acid like HClO4, the concentration of H+ ions is equal to the concentration of the acid.
Given that the solution is a 2.5 M (mol/L) solution of HClO4, the concentration of H+ ions is also 2.5 M.
The pH scale is a logarithmic scale that measures the acidity or basicity of a solution. The pH value is defined as the negative logarithm (base 10) of the concentration of H+ ions.
Therefore, the pH of a 2.5 M solution of HClO4 is:
pH = -log[H+]
= -log(2.5)
Using a calculator, we find that:
pH ≈ -log(2.5) ≈ -0.3979 ≈ 0.4
So, the pH of a 2.5 M solution of HClO4 is approximately 0.4.
To determine the pH of a solution, we need to know the concentration of H+ ions in the solution. In the case of a strong acid like HClO4, it completely dissociates in water, leading to the formation of H+ ions.
To find the concentration of H+ ions in a 2.5 M solution of HClO4, we can use the concept of ionization. Since it is a strong acid, we can assume that all of the HClO4 molecules will dissociate into H+ ions. Therefore, the concentration of H+ ions is equal to the concentration of HClO4.
So, the concentration of H+ ions in the solution would also be 2.5 M.
The pH of a solution is defined as the negative logarithm (base 10) of the concentration of H+ ions. Thus,
pH = -log[H+]
Substituting the given concentration of H+ ions into the equation:
pH = -log(2.5)
Now, using a logarithm calculator or the log function on a scientific calculator, we can find the pH value of the solution.