Question

The concentration of hydrogen ion in a sample of soft drink is $3.8\times {10}^{-3}M$. What is its pH ?

Answer 1

pH of soft drink

Given, Concentration of hydrogen ion $\left[H^{+}\right]=3.8\times {10}^{-3}M$

We know,

$\begin{array}{cc}pH& =-\log \left[H^{+}\right]\\ & =-\log [3.8\times {10}^{-3}]\\ & =2.42\end{array}$

Therefore, the pH of the soft drink is $2.42$.

Since $pH<7$, therefore, it is acidic in nature.