cassadeertte
cassadeertte cassadeertte
  • 15-06-2017
  • Chemistry
contestada

What is the pOH of a 0.0072 M solution of sodium hydroxide? pOH=?

Respuesta :

Anurag04 Anurag04
  • 19-06-2017
pOH of a 0.0072 M=-lg(0.0072) = 2.1426675
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kobenhavn kobenhavn
  • 13-05-2019

Answer : 2.14

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

Given : [tex]NaOH\rightarrow Na^++OH^-[/tex]

1 mole of [tex]NaOH[/tex] gives 1 mole of [tex]OH^_[/tex]

Thus 0.0072 moles of  [tex]NaOH[/tex] will give= 0.0072 moles of [tex]OH^_[/tex]

[tex]pOH=-\log [OH^][/tex]

[tex]pOH=-\log (0.0072)[/tex]

[tex]pOH=2.14[/tex]

Therefore, the pOH of the basic solution is 2.14.

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