Equilibrium questions
1777 published questions with worked solutions.
- Study the following table of buffer solutions (volume in mL of 1 M weak acid, and volume in mL of 0.1 M sodium salt of the weak...
- Which buffer solution comprising the following has its pH value greater than 7? [RPET 2010]
- The rapid change of pH near the stoichiometric point of an acid base titration is the basis of indicator detection. pH of the...
- In a mixture of acetic acid and sodium acetate, the ratio of concentration of the salt to the acid is increased ten times. Then,...
- Which one of the following salts give an acidic solution in water? [EAMCET 2007]
- The relation between hydrolysis constant and dissociation constant is given. Which is the correct formula for MgCl_2? [MP PET...
- In the titration of Na_2CO_3 and HCl, the indicator used is [WB-JEE 2007]
- Buffer solution is prepared by mixing [MHT-CET 2003]
- Which of the following is not a buffer solution? [Indraprastha CET 2009, CG PET 2009]
- Which one of the following pairs shows buffer solution? [WB-JEE 2006]
- HX is a weak acid (K_a=10^ -5 ). It forms a salt NaX (0.1 M on reacting with caustic soda). The degree of hydrolysis of NaX is
- Consider the following solutions of equal concentrations: A = NH _4 Cl , B = NaOH , C = NH _4 OH , D = HCl . A buffer solution...
- Dissociation constant (K_b) of NH_4OH in water is 1.8 10^ -5 , then the hydrolysis constant of NH_4Cl is [BCECE 2004]
- The pH of a buffer solution of 0.1 M NH_4OH [pK_b=5.0] and 0.01 M NH_4Cl is
- The dissociation constant of a substituted benzoic acid at 25°C is 1.0 10^ -4 . The pH of 0.01 M solution of its sodium salt is
- The hydrolysis constant of a salt of weak acid and weak base is inversely proportional to [Manipal 2003]
- For a weak acid pK_a is 4.8. What will be the ratio of concentration of acid and salt in pH 5.8 solution?
- NH_4Cl is acidic because [OJEE 2004]
- p K_a of acetic acid is 4.74. The concentration of CH _3 COONa is 0.01 M . The pH of the CH _3 COONa solution is:
- 0.1 mole of CH_3NH_2 (K_b=5 10^ -4 ) is mixed with 0.08 mole of HCl and diluted to 1 L. What will be the H^+ concentration in the...
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