Taking into account the definition of pH and pOH, the pOH of a 0.0235 M HCl solution is 12.37.
In first place, pH is a measure of acidity or alkalinity that indicates the amount of hydrogen ions present in a solution or substance. Mathematically, pH is expressed as the negative base 10 logarithm of the hydrogen ion concentration:
pH= - log [H⁺]= -log [H₃O⁺]
A strong acid is an acid that ionizes almost completely in aqueous solution, so the concentration of protons equals the concentration of the acid.
Being HCl a strong acid, then
[HCl]= [H⁺]= [H₂O⁺]= 0.0235 M
Then, the pH of the solution is:
pH= -log (0.0235 M)
pH= 1.63
On the other hand, pOH is a measure of the concentration of hydroxyl ions in a solution. The following relationship can be established between pH and pOH:
pH+ pOH= 14
In this case:
1.63 + pOH= 14
Solving:
pOH= 14 - 1.63
pOH= 12.37
Finally, the pOH of a 0.0235 M HCl solution is 12.37.
Learn more about:
- pH: https://brainly.com/question/3992824?referrer=searchResults
- pH and pOH: https://brainly.com/question/13423425?referrer=searchResults
