Answer:
The pH can be obtained from the pOH
Step-by-step explanation:
pH is a number which expresses the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values indicate greater acidity and higher values greater alkalinity. The pH is equal to −log[H^+], where [H^+] is the hydrogen ion concentration in moles per litre.
Similarly, pOH is given by; pOH= −log[OH^-]. Hence, in a question where the concentration of hydroxide ion is given, we apply this formula to first obtain the pOH.
Also, we know that pH + pOH=14. This implies that, pH= 14 - pOH. Thus we obtain the pH of the solution from its hydroxide ion concentration by following all the steps listed above.