Equilibrium questions
1777 published questions with worked solutions.
- A decimolar solution of ammonium hydroxide is ionised to the extent of 1.3%. If 1.3 = 0.11, what is the pH of the solution?
- The ionisation constant of benzoic acid is 6.46 10^ -5 and K_ sp for silver benzoate is 2.5 10^ -13 . How many times is silver...
- The ionisation constant of chloroacetic acid is 1.35 10^ -3 . The pH of 0.1 M acid and its 0.1 M sodium salt solution are...
- pH of which of the following solutions is highest?
- What mole of Ca(OH)_2 is dissolved in 250 mL aqueous solution to give a solution of pH 10.65, assuming full dissociation?
- K_a for HCN is 5 10^ -10 at 25 ^ . For maintaining a constant pH = 9, the volume of 5 M KCN solution required to be added to 10...
- If the solubility product of BaSO_4 is 15 10^ -10 in water, its solubility, in moles per litre, is
- Solubility of BaF_2 in a solution of Ba(NO_3)_2 will be represented by the concentration term
- For a concentrated solution of a weak electrolyte A_xB_y of concentration C, the degree of dissociation is given as
- Solubility product constant (K_ sp ) of salts of types MX, MX_2 and M_3X at temperature T are 4.0 10^ -8 , 3.2 10^ -14 and 2.7...
- The concentration of sulphide ion in 0.1 M HCl solution saturated with hydrogen sulphide is 1.0 10^ -19 M. If 10 mL of this is...
- The solubility product of Ag_2CrO_4 is 32 10^ -12 . What is the concentration of CrO_4^ 2- ions in that solution?
- The solubility product of Al(OH)_3 is 2.7 10^ -11 . Its solubility in g ,L^ -1 and pH of this solution are respectively (Atomic...
- Calculate the volume of water required to dissolve 0.1 g lead (II) chloride to get a saturated solution. (K_ sp of PbCl_2 = 3.2...
- pH of following solution is not affected by dilution
- The pH of neutral water at 25 ^ is 7.0. As the temperature increases, ionisation of water increases, however, the concentration...
- What will be the pH and % respectively for the salt BA of 0.1 M concentration? Given, K_a for HA = 10^ -6 and K_b for BOH = 10^...
- K_a for CH_3COOH is 1.8 10^ -5 and K_b for NH_4OH is 1.8 10^ -5 . The pH of ammonium acetate will be
- An aqueous solution of sodium carbonate is alkaline because sodium carbonate is a salt of
- The aqueous solution of AlCl_3 is acidic due to the hydrolysis of
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