Indicator | $pH$ range |
Methyl orange | $3.2-4.5$ |
Phenolpthalein | $8.3-10.5$ |
Methyl orange may be used for a strong acid vs strong base and strong acid vs weak base titration. Phenolpthalein may be used for a strong acid vs strong base and weak acid vs strong base titration.
એમોનિયા દ્રાવણની $pH$ શું હશે?
(એમોનિયા દ્રાવણનો $pK_b$ $4.74$ છે).