Calculate the pH of each solution.
(a) [OH−] = 1.9 × 10−7 M
(b) [OH−] = 2.6 × 10−8 M
(c) [OH−] = 7.2 × 10−11 M
(d) [OH−] = 9.5 × 10−2 M
Solution 73P :
Here, we have to pH of each solution :
pOH is the measure of concentration of hydroxide ion (OH-) in the solution. It is used to measure the alkalinity of a solution.
To calculate the pOH of a solution we should know the concentration of the hydroxide ion in moles per liter, i.e the molarity of the solution.
pOH is calculated using the expression:
pOH = - log [OH-]