AP EAMCET Medical 23 Apr 2019 Shift 2 Paper

Question : 127 of 160

Marks: +1, -0

20 mL of 0.04M CuSO4 solution reacts completely with 20 mL of certain concentration of KI solution. If I2 thus liberated reacts completely with 20 mL of sodium thiosulphate solution, the molality of thiosulphate in mol L−1 is