anonymous
  • anonymous
HClO is a weak acid (Ka = 4.0 × 10–8) and so the salt NaClO acts as a weak base. What is the pH of a solution that is 0.059 M in NaClO at 25 °C?
Chemistry
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
Na is a spectator ion in this situation. Start by finding the Kb of ClO–.
anonymous
  • anonymous
help?
Zale101
  • Zale101
Before going ahead to do the ice diagram, you have to know that you are looking for the pH of a base. To do that, use the Henderson–Hasselbalch equation pOH=pKb+log[product]/[reactant] However, we have a ka not a kb. To get the Kb use this rule: \(\large Kw=Kb*Ka\) \(\large Kb=\frac{Kw}{Ka}\) Where Kw is 10^(-14)

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Zale101
  • Zale101
That's solving for the Kb of ClO-
Zale101
  • Zale101
Now, to do the ice diagram, you have. |dw:1446340197310:dw|
Zale101
  • Zale101
We do not include water in solutions.
Zale101
  • Zale101
Makes sense? Are you familiar with the ice diagram?
Zale101
  • Zale101
Now, your equation will become: \(\large Kb=\Large \frac{Product}{Reactants}=\frac{[HClO][OH^{-}]}{[ClO^{-}]}\)
Zale101
  • Zale101
@Chrisean are you there?
Zale101
  • Zale101
\(\large Kb=\Large \frac{x^2}{0.036-x}\)
Zale101
  • Zale101
What is your Kb?
Zale101
  • Zale101
We are not done yet, there's more to go.
greatlife44
  • greatlife44
We would need to make an ice table.

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