Question

Calculate the hydronium ion concentration, [H3O+], for a solution with a pH of 8.28.

Answer 1

Answer on Question #78630, Chemistry / Inorganic Chemistry

Question:

Calculate the hydronium ion concentration, $[H_3O^+]$, for a solution with a pH of 8.28.

Solution:

$$\begin{array}{l} pH = -\log_{10}[H_3O^+] \\ \log_{10}[H_3O^+] = -pH \end{array}$$

So, concentration of hydronium ion: $[H_3O^+] = 10^{-pH} = 10^{-8.28} = 5.25 \cdot 10^{-9}$

Answer:

$$5.25 \cdot 10^{-9}$$

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