In: Chemistry
1. The Kaof iodic acid (HIO3) at 25 °C is 1.6*10-1. What is the Kb of iodate (IO3-) at this temperature?
b. Use the information in the first question to calculate the pH of a 0.10 M solution of iodic acid at a temperature of 25 °C?
c. Use the information in the first question to calculate the pH of a solution obtained by combining 20.0 mL of 0.10 M iodic acid and 10.0 mL of 0.1 M sodium hydroxide (NaOH).
d. Use the information in the first question to calculate the pH of a solution obtained by combining 20.0 mL of 0.10 M iodic acid and 20.0 mL of 0.1 M sodium hydroxide.
Appriciate it!
1) ans Ka * Kb = Kw
1.6 * 10-1 * Kb = 10-14
Kb = 0.625 * 10-13
b) PH = - log [ H+]
= - log 10-1
= 1
thank u