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What is the pH of a substance with a hydrogen concentration of 1.0 x 10^-12 ?

Sagot :

Step 1 - The definition of pH

The pH of a solution is defined as:

[tex]pH=-log[H^+\rbrack[/tex]

Therefore, if we know its H+ concentration, we can calculate its pH.

Step 2 - Calculating the pH

[tex]\begin{gathered} [H^+\rbrack=10^{-12}mol/L \\ \\ pH=-log10^{-12} \\ \\ pH=-(-12)\times log10=12 \end{gathered}[/tex]

Answer: the pH of this solution is 12.

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