A buffer has equal concentrations of weak acid and its salt. Its pH equals
Aa value of 7
Bthe value of pKa
C14 minus the pKa
Dtwice the pKa
Answer & Solution
Correct answer: B. the value of pKa
With salt equal to acid the log term is zero, so pH = pKa.
Keep practising Ionic Equilibria
Browse all Ionic Equilibria questions for MHT-CET, or explore more Chemistry topics.
Related questions
In HCl + H2O giving H3O+ + Cl-, the conjugate acid of water isAfter adding a common ion to a saturated solution, the value of KspAdding CH3COONa to a CH3COOH solutionTooth decay involves dissolution in acid of the enamel compoundKidney stones are mainly formed by precipitation ofIonic product of MgC2O4 in a mixture is 7.5 x 10^-3 against Ksp 8.56 x 10^-5. What happensWhen the ionic product exceeds Ksp, the solution isThe Ksp of AgBr is 5.2 x 10^-13. Its molar solubility is about