How much water must be added to `300 mL` of a `0.2M` solution of `CH_(3)COOH` for the degree of dissociation of the acid to double ? ( Assume `K_(a)` of acetic is of order of `10^(-5)M)`
The Van't Hoff factor for 0.1 M Ba(NO_3)_2 solution is 2.74. the degree of dissociation is
If 20 mL of 0.1 M NaOH is added to 30 mL of 0.2 M CH_(3)COOH (pK_(a)=4.74), the pH of the resulting solution is :
The pH of a solution of 0.10 M CH_(3)COOH increases when which of the following substances is added?
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 precent dissociation (alpha) of a 0.01 M HA solution? (K_(a)=10^(-4))
0.2 m aqueous solution of a weak acid is 20% dissociated. The boiling point of this solution is (K_(b) of water= 0.52Km^-1)
How many millilitres of 0.1 M H_2SO_4 must be added to 50mL of 0.1 M NaOH to give a solution that has a concentration of 0.05 M in H_2SO_4 ?
0.01 m aqueous solution of sodium sulphate depresses the freezing point of water by 0.0284^@C . Calculate the degree of dissociation of the salt. (k_f of water = 1.86 Km^-1)
1 . 5 of Ba (NO_(3))_(2) dissolved in 100 g of water shows a depression in freezing point equal to 0 . 28^(@)C . What is the percentage dissociation of the salt ? ( K_(f) for water = 1 . 86 K/m and molar mass of Ba (NO_(3))_(2) = 261.)
The cryoscopic contant of water is 1.86 K kg mol^(-1) . A 0.01 molal acetic acid solution produces a depression of 0.0194^(@)C in the freezing point. The degree of dissociation of acetic acid is :
NARENDRA AWASTHI-IONIC EEQUILIBRIUM-Assertin-Reason Type Questions
