What is the pH of a 0.025 M solution of Hydrobromic Acid?
Solution
Hydrobromic Acid or HBr, is a strong acid and will dissociate completely in water to H+ and Br-. For every mole of HBr, there will be 1 mole of H+, so the concentration of H+ will be the same as the concentration of HBr. Therefore, [H+] = 0.025 M.
pH is calculated by the formula
pH = - log [H+]
Enter the concentration found before
pH = - log (0.025)
pH = -(-1.602)
pH = 1.602
Answer
The pH of a 0.025 M solution of Hydrobromic Acid is 1.602.
