The molar conductivity at infinite dilution of barium chloride, sulphuric arid and hydrochloric acid are 280 ,   860 426   Scm 2 mol - 1 respectively. The molar conductivity at infinite dilution of barium sulphate is ___ Scm 2   mol - 1 ( Round off to the Nearest Integer).

Question

The molar conductivity at infinite dilution of barium chloride, sulphuric arid and hydrochloric acid are 280 , &#160; 860 426 &#160; Scm 2 mol - 1 respectively. The molar conductivity at infinite dilution of barium sulphate is ___ Scm 2 &#160; mol - 1 ( Round off to the Nearest Integer).

Aicharya · Accepted Answer

From Kohlrausch's law &#923; m &#8734; BaSO 4 = &#955; m &#8734; Ba 2 + + &#955; m &#8734; SO 4 2 - &#923; m &#8734; BaSO 4 = &#923; m &#8734; BaCl 2 + &#923; m &#8734; H 2 SO 4 - 2 &#923; m &#8734; ( HCl ) = 280 + 860 - 2 ( 426 ) = 288 &#160; Scm 2 &#160; mol - 1

The molar conductivity at infinite dilution of barium chloride, sulphuric arid and hydrochloric acid are 280…

Solution