MCQ
How many $H^+$ ions are present in $2\, mL$ of a solution whose $pH$ is $13$ ?
- A${10^{ - 16}}$
- ✓$12.04 \times {10^7}$
- C$6.02 \times {10^7}$
- D$12.04 \times {10^{13}}$
Moles $=$ Molarity $\times V$ inlitre
$=\quad 10^{-13} \times \frac{2}{1000}$
$=\quad 10-13 \times 2 \times 10^{-3}$
$=\quad 2 \times 10^{-16}$
no. of $H^+$ ions $=2 \times 10^{-16} \times 6.023 \times 10^{23}$
$=12.046 \times 10^7$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$\begin{array}{*{20}{c}}
{C{H_3} - C = C{H_2}C{H_2}OH} \\
{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} \\
{\,C{H_3}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}
\end{array}$ is