Hydrogen ion concentration in mol / L in a solution of pH = 5.4 will be

Hydrogen ion concentration in mol / L in a solution of pH = 5.4 will be
  1. $3.98 \times 10^8$
  2. $3.88 \times 10^6$
  3. $3.68 \times 10^{-6}$
  4. $3.98 \times 10^{-6}$

Solution

$\mathrm{p}^{H}=-\log \left(\mathrm{H}^{+}\right)$

Asked in: JEE Main 2005

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