Question

Calculate [H3O+] and [OH−] in solution of pH = 4.8

Answer 1

The concentration of the hydronium ion is 0.15 M and the concentration of the hydroxide ion is 6.30 × 10 ⁻¹⁰.

What are pH and pOH?

pH is the negative logarithm of the hydrogen ion concentration, while pOH is the measure of the hydroxide ion concentration.

The hydronium ion concentration of the solution is calculated as:

$\begin{aligned} \rm (H_3}\rm O^{+}) &= \rm antilog (-pH)\\\\&= \rm antilog (-4.8)\\\\&= 1.58489\times 10^{-5} \;\rm M\end{aligned}$

pOH is calculated as:

$\begin{aligned}\rm pH + pOH &= 14\\\\&= 14 - 4.8\\\\&= 9.2 \end{aligned}$

The concentration of the hydroxide ion is calculated as:

$\begin{aligned} \rm pOH &= \rm - log [OH^{-}]\\\\&= \rm -antilog (9.2)\\\\&= 6.30 \times 10^{-10}\end{aligned}$

Therefore, the hydronium ion concentration is $1.58489\times 10^{-5} \;\rm M$ and hydroxide is $6.30 \times 10^{-10}.$

Learn more about pH and pOH here:

https://brainly.com/question/24148775

#SPJ1