1.

A base is dissolved in water yields a solution with a hydroxide ion concentration of 0.05 mole "litre"^(-1). The solution is

Answer»

Basic
Acid
Neutral
Both (a) and (b)

SOLUTION :`[OH^(-)]` ion conc. `0.05 (mol)/(l) = 5 xx 10^(-2) (mol)/(l)`
`pOH = -LOG [OH^(-)] = -log[ 5xx 10^(-2)]`
`pOH = 1.30, pH + pOH = 14`.
`pH = 14 - pOH = 14 - 1.30 = 12.7`.


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