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What is the formula for pH?
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39 votes
What is the formula for pH?

User Sam Critchley
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15 votes

Answer:

To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity). The pH is then calculated using the expression: pH = - log [H3O+].

Example: Find the pH of a 0.0025 M HCl solution.

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