Equilibrium questions
1777 published questions with worked solutions.
- Calculate the solubility of sparingly soluble salt BA in mol dm ^ -3 at 300 K if its solubility product is 4.9 10^ -9 at same...
- Calculate the pH of buffer solution containing 0.04 M NaF and 0.02 M HF [pK_a = 3.142]
- What is the pOH of millimolar solution of Ca(OH)_2 ?
- Molar conductivity of 0.02 M weak acid is 7.92 ^ -1 cm^2 ,mol^ -1 and its molar conductivity at infinite dilution is 232.7 ^ -1...
- Which among the following is correct conjugate acid base pair for the equation stated below? HCl + NH_3 NH_4^+ + Cl^-
- Dissociation constant and degree of dissociation of weak acid are 1.8 10^ -5 and 0.03 respectively. What will be the...
- Find solubility in terms of mol L^ -1 if solubility product of silver bromide is 6.4 x 10^ -13
- Weak acid HX has dissociation constant 1 x 10^ -5 . Calculate the percent dissociation in its 0.1 M solution?
- Calculate the pH of a buffer solution containing 0.01 M salt and 0.004M weak acid (pKa =4.762)
- Calculate the concentration of H^+ ions in a solution if pOH is 11?
- Acetic acid is dissociated to 1.20% in its 0.01 M solution. What is the value of its dissociation constant?
- An aqueous solution of strong mono acidic base is of 1 10^ -4 M. What is the value of pH at 25^ C
- Acid buffer solution is prepared by mixing proportionate quantity of
- The degree of dissociation of 0.01 M solution of NH_4OH is 4.2 10^ -2 . What is the percent dissociation of NH_4OH ?
- Calculate solubility (mol dm^ -3 ) of a sparingly soluble electrolyte AB at 298 K if its solubility product is 1.6 10^ -5 ?
- What is the pH of 10^ -8 M HCl solution?
- A weak monobasic acid dissociated to 0.001% in it's 0.01 M solution. What is it's dissociation constant?
- Why the pH of aqueous solution of copper sulphate is less than 7 ?
- A buffer solution is prepared by mixing 0.1 M HCN and 0.2 M NaCN. What is the pH of buffer solution if pK_a of HCN is 9.3 ?
- The [ H^+ ] in lemon juice is fond to be 0.0063 M. What is pH value of lemon juice (log 6.3 = 0.7993)?
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