1.

The vapour pressure of 0.01m solution of a weak base BOH in water at 20^(@)C is 17.536mm. Calculate K_(b) for the base. Aq.tension at 20^(@)C=17.54mm

Answer»

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Solution :`i=("OBS.lowering in v.p.")/("cal.lowering in v.p.")=(p-p_(obs.))/(p^(0).(N)/(N))=(17.540-17.536)/(17.54xx(0.01)/(1000.18))`
Then apply`i=1+x` and `K_(b)=(0.01x^(2))/(1-x)`


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