Insulin is dissolved in suitable solvent and the osmotic pressure `(pi)` of solution of various concentration `(g//cm^(3))` C is measured at `27^(@)C`. The slope of plot of `pi` against C is found to be `4.1 xx 10^(-3)`. The molecular mass of inulin is:

Options

A. `6 xx 10^(6)`
B. `3xx 10^(6)`
C. `6 xx 10^(3)`
D. `3 xx 10^(3)`

Answer

A

Explanation

`Delta T = I xx K_(f) xx m`
`(273 - 269.28) = I xx 1.86 xx 1`
`3.72 = I xx 1.86`
`I = 2`
`alpha = (i-1)/(n - 1)`
`1 = (2 - 1)/(n - 1) " or " n = 2`
Thus, the complex should give two ions in the solution, i.e., the complex will be `[Pd(H_(2)O)_(3) Cl_(3)] Cl. 3H_(2)O]`