Equilibrium questions
1777 published questions with worked solutions.
- What is the ratio of concentration of salt to concentration of weak acid in buffer solution to maintain it's pH value 7.2 (pKa =...
- What is the value of pOH if a buffer solution is prepared by mixing equal volumes of 0.4 M NH_4OH and 0.5 M NH_4Cl solutions (pKb...
- Calculate pH of 0.002 M KOH solution
- Calculate ' ' for 0.1 M acetic acid (K_a = 1.0 10^ -5 )
- Calculate [ H _3 O ^+] in 0.02 M solution of monobasic acid if dissolution constant is 1.8 10^ -5
- Which of the following equations represents the relation between solubility and solubility product for salt BA _3 ?
- Calculate pH of buffer solution containing 0.027 M weak acid and 0.054 M its salt with strong base if p K_a is 4.2
- Which from following salts is NOT derived from weak acid and weak base?
- Calculate the solubility product of sparingly soluble salt BA at 25^ C if its solubility is 7.2 10^ -7 mol ,dm^ -3 at same...
- Calculate the [OH^-] if pOH of solution is 4.94
- Which from following mixtures in water acts as a basic buffer?
- Calculate the pH of a buffer solution containing 0.35 M weak acid and 0.70 of its salt with strong base if p K_a is 4.56
- Calculate the concentration of weak monobasic acid If its degree of dissociation and dissociation constant are 5.0 10^ -4 and 5.0...
- What is the pH of solution having H^+ ion concentration 3.981 10^ -7 M?
- What is the percentage dissociation of 0.1 M acetic acid? (K_a = 10^ -5 )
- What is the pH of 2.6 x 10^ -8 M H^+ ion solution? (log 2.6 = 0.4150)
- A weak monobasic acid is 2% dissociated in it's 0.01 M solution. What is the dissociation constant of weak acid?
- Identify the conjugate acid - base pair in the following reaction H_2O + HCl H_3O^+ + Cl^-
- What is the p^H of the solution containing 1.342 x 10^ -3 M H^+ ions? (log 1.342 = 0.1277)
- Which among the following species can act as an acid as well as base according to Bronsted - Lowry theory?
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