An acid -base indicator has a Ka of 3.0 xx 10^(-5) The acid form of the indicator is red and the basic form is blue. Then
Calculate the pH at which an acid indicator with K_(a), = 1.0 xx 10^(-5) changes colour when the indicator concentration is 1.0 xx 10^(-3) M
An acidic indicator ionises as I_(n) H hArr "In"^(-) + H^(+) . The molecular and ions of the indicator show different colours. The indicator changed it colour if its acidic of basic form completely predominant. Dissociation constant of an acidic indicator is 10^(-5) . At what p^(H) 80% of the indicator exists in molecular form ?
Calculate the pH at which an acid indicator with K_a =1.0 xx 10^(-5) changes colour when the indicator concentration is 1.0 xx 10^(-3) M .
The K_a value for HCN is 10^(-9) . What is the pH of decimolar HCN solution ?
Find the value of (-6) xx 5
The K, of an indicator HIn is 9 x 10^(4) , The percentage of the basic form of indicator is 10x in a solution of pH = 4. What is x ?
The pH of 0.05 M acetic acid is (K_(a) = 2 xx 10^(-5))
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions
