Ionic EquilibriumHard
Question
A certain buffer solution contains equal concentration of X- and HX. The Kb for X- is 10-10. The pH of the buffer is:
Options
A.4
B.7
C.10
D.14
Solution
pH = - log Ka + log 
= - log 10-4 + log 
= 4
[Since Ka × Kb = 10-14 Given Kb = 10-10 ∴ Ka = 10-4]
= - log 10-4 + log = 4[Since Ka × Kb = 10-14 Given Kb = 10-10 ∴ Ka = 10-4]
Create a free account to view solution
View Solution FreeMore Ionic Equilibrium Questions
Solubility product constant (Ksp) of salts of types MX, MX2 and M3X at temperature, T are 4.0 × 10−8, 3.2 × 10−14 and 2....HCHO reacts with CH3MgI followed by hydrolysis to give :-...An amount of 0.15 mole of pyridinium chloride has been added into 500 ml of 0.2 M pyridine solution. Calculate pH of the...KSP if Mg(OH)2 is 1 × 10-12. 0.01M MgCI2 will show precipitation in a solution of pH greater than:...Fear or excitement, generally cause one to breathe rapidly and it results in the decrease of concentration of CO2 in blo...