which of these substances has the highest poh? 0.10 m hcl, ph = 1 0.001 m hno3, ph = 3 0.01 m naoh, ph = 12…
which of these substances has the highest poh? 0.10 m hcl, ph = 1 0.001 m hno3, ph = 3 0.01 m naoh, ph = 12 done
Answer
Answer:
0.001 M HNO₃, pH = 3
Explanation:
Step1: Recall pH - pOH relationship
pH + pOH = 14, so pOH=14 - pH.
Step2: Calculate pOH for 0.10 M HCl
Given pH = 1, then pOH = 14 - 1 = 13.
Step3: Calculate pOH for 0.001 M HNO₃
Given pH = 3, then pOH = 14 - 3 = 11.
Step4: Calculate pOH for 0.01 M NaOH
Given pH = 12, then pOH = 14 - 12 = 2.
Step5: Compare pOH values
13>11>2, so 0.001 M HNO₃ with pOH = 11 has the highest pOH among the given options.