Question

The units of ionic product of water $(K_w)$ are

• A. $mo{l}^{-1}{L}^{-1}$
• B. $mo{l}^{-2}{L}^{-2}$
• C. $mo{l}^{-2}{L}^{-1}$
• D. $mo{l}^2{L}^{-2}$

Answer 1

Answer: (D)

$K_w=[H^{+}][O{H}^{-}]$
Units of $K_w=(mol{L}^{-1})(mol{L}^{-1})$
$=mo{l}^2{L}^{-2}$