`K_2SO_4`

5 gm of K_2 SO_4 solution were dissolved in 250 ml of water. How many ml of this solution are needed to precipitate out 1.2 gm of BaSO_4 on addition of BaCI_2 ?

250 ml of 0.10 M K_2 SO_4 solution is mixed with 250 ml of 0.20 M KCI solution. The concentration of K^(+) ions in the resulting solution will be:

The resistance and conductivity of 0.02 M KCl solution are 82.4 ohm and 0.002768 S ch^(-1) respectively . When filled with 0.005 N K_(2)SO_(4) , the solution had a resistance of 324ohm . Calculate : a. Cell constant b. Conductance of K_(2)SO_(4) solution c. Conductivity of K_(2)SO_(4) solution d. Equivalent conductivity of K_(2)SO_(4) solution e. Molar conductivity of K_(20SO_(4) solution.

0.2 M aq. Solution of KCl is istonic with 0.2 M K_(2)SO_(4) at same temperature. What is the van't Hoff fector of K_(2)SO_(4) ?

The solubility of K_(2)SO_(4) in water is 16 g at 50^(@)C . The minimum amount of water required to dissolve 4 g K_(2)SO_(4) is:

2KI+CuSO_(4) to CuI darr+(1)/(2)I_(2)+K_(2)SO_(4)

CuSO_(4)+2KI to CuI darr+(1)/(2)I_(2)+K_(2)SO_(4)

CuSO_(4)+2KI to CuI darr+(1)/(2)I_(2)+K_(2)SO_(4)

CuSO_(4)+2KCN to CuCN darr+(CN)_(2)uarr+K_(2)SO_(4)