Question 1
If the ionization constant of water,
Kw, at 40°C is 2.92 × 10
-14, then what is the hydronium ion concentration and pH for an acidic solution?
◦ [H
3O
+] < 1.71 × 10
-7 M and pH < 6.77
◦ [H
3O
+] > 1.71 × 10
-7 M and pH < 6.77
◦ [H
3O
+] > 1.71 × 10
-7 M and pH > 6.77
◦ [H
3O
+] < 1.71 × 10
-7 M and pH > 6.77
Question 2
Calculate the pH for an aqueous solution of acetic acid that contains 2.15 × 10
-3 M hydronium ion.
◦ 11.33
◦ 2.15 × 10
-3◦ 2.67
◦ 4.65 × 10
-12