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What is the pH of 3.0 M KOH?

Updated: 8/10/2023
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11y ago

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Molarity is the concentration of a solution, defined as moles per unit volume.

Where,

Molarity = moles / volume

In this case the molarity of the HCl solution is 0.03 M

The pH of this is calculated by the equation below

pH = - log [H+]

Where [H+] is the concentration of hydrogen ions/ protons present in the solution.

As HCl only contains one hydrogen ion per molecule then the concentation of [H+] is 0.03 M

Then the equation can be calculated (the minus sign is very important!)

pH = - log 0.03

pH = 1.52

To summarise,

Molarity of 0.03 M HCl solution is 0.03 M

pH of 0.03 M HCl solution is 1.52

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13y ago
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11y ago

pOH=-log(3.0M)

pOH=-0.4771212547

pH=14-pOH

pH=14-(-0.477121254700

pH=14.5

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11y ago

pH of 3.00 M of HCl

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Q: What is the pH of 3.0 M KOH?
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