1.5. pH, pOH, and Kw

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Last updated 7:58 AM on 8/9/26
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5 Terms

1
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What does pOH + pH equal?

pOH + pH = 14

2
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What is the formula for pH using [H+] and vice versa?

pH = -log10[H+]


H+ = 10-pH

3
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What is the formula for pOH using [OH-] and vice versa?

pOH = -log10[OH-]


OH- = 10-pOH

4
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What is the formula of Kw for TEMP = 25 Celcius? What is this used for?

Kw = [H+][OH-] = 1 × 10-14

  • Used to convert from [H+] to [OH-] and vice versa.


5
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  • find the limiting reagent

  • think of the excess reagent as basically adding more [OH-] or [H+] into the resultant

  • calculated the moles of ions

  • calculate the pH or pOH through this (might need Kw)


<ul><li><p>find the limiting reagent </p></li><li><p>think of the excess reagent as basically adding more [OH-] or [H+] into the resultant </p></li><li><p>calculated the moles of ions </p></li><li><p>calculate the pH or pOH through this (might need Kw)</p></li></ul><p></p>