Answer:
-2.70 is the difference in the pH values of the two solutions.
Explanation:
Hydrogen ion concentration in solution A = [tex][H^+]_A[/tex]
Hydrogen ion concentration in solution B = [tex][H^+]_B[/tex]
The pH of solution A: pH
[tex]pH=-\log[H^+]_A[/tex]
The pH of solution B: pH'
[tex]pH'=-\log[H^+]_B[/tex]
[tex][H^+]_A=500\times [H^+]_B[/tex]
[tex]pH=-\log[H^+]_A[/tex]
[tex]pH=-\log[500[H^+]}_B][/tex]
[tex]pH=-\log[500]+(-\log[H^+]_B])[/tex]
[tex]pH=-2.70+pH'[/tex]
[tex]pH-pH'=-2.70[/tex]
-2.70 is the difference in the pH values of the two solutions.