2g of NaOH per 250mL of solution is added to a buffer solution of buffer capacity 0.2. Then the change in pH is
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To a 10mL of 10−3NH2SO4 solution water has been to make the total volume of one litre. Its pOH would be :
Bromothymol blue is an indicator with a Ka value of 6×10−5. What % of this indicator is in its basic form at a pH of 5 ?
In which of the following cases is the solution of AgCl unsaturated?
The equilibrium constant Kp for the following reaction is 4.5 N2O4(g)⇔2NO2(g) What would be the average molar mass (ing/mol) of an equilibriumm mixture of N2O)(4) and NO2 formed by the dissociation of pure N2O4 at a jtotal pressure of 2 atm ?
The pH of a solution is 5. to this solution acid was added so that its pH value bcomes 2.0. The increase in H+ concentration is :
Which is the set of amphiprotic species?
% hydrolysis of 0.1M CH3COONH4, when Ka(CH3COOH)=Kb(NH4OH)=1.8×10−5 is:
A catalyst :