Calculate pOH of 0.1 M aq. Solution of weak base BOH (K_(b)=10^(-7)) at 25^(@)C.
pH of 0.01 M aq. Solution of HA is 4. Find the value of pK_(a) of HA at 25^(@)C.
How many gm of solid KOH must be added to 100 mL of a buffer solution to make the pH of solution 6.0, if it is 0.1 M each w.r.t. acid HA and salt K A. [Given : pK_(a)(HA)=5]
What is the pH of a solution of 0.28 M acid and 0.84 M of its conjugate base if the ionization constant of acid is 4xx10^(-4) ?
What will be the pH of an aqueous solution of 1.0 M ammonium formate? Given : pK_(a)=3.8 and pK_(b)=4.8
H_(2) A is a weak diprotic acid. If the pH of 0.1 M H_(2)A solution is 3 and concentration of A^(2-) is 10^(-12) at 25^(@)C. Select correct statement (s)
Calcium lactate is a salt of weak organic acid and strong base represented as Ca(LaC)_(2). A saturated solution of Ca(LaC)_(2) contains 0.13 mole in 0.5 litre solution. pOH of solution is 5.60. What is pK_(a) of lactic acid?
Assertion : In a titration of weak monoprotic acid with strong base, the pH at the half equivalent point is pK_(a) . Reason : At half equivalence point, it will form acidic buffer at its maximum capacity where [acid] = [salt].
Sodium acetate is salt of strong acid and weak base. True or False
The initial rate of hydrolysis of methyl acetate (1M) by a weak acid (HA, 1M) is 1/100 th of that of a strong acid (HX, 1M), at 25^@C . The K_a of HA is
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions
