Question

The cryoscopic constant and freezing point of benzene is 5.12 k kg mol1 and 278.6 k respectively. At what temperature will one molal solution of benzene containing a non- electrolyte (i=1) freeze?

Answer 1

one molal solution of benzene containing a non- electrolyte (i=1) will freeze at 273.48 K

Explanation:

Depression in freezing point is given by:

$\Delta T_f=i\times k_f\times m$

$\Delta T_f=T_f^0-T_f=(278.6-T_f)K$ = Depression in freezing point

i= vant hoff factor = 1

$K_f$ = freezing point constant = $5.12K/kgmol$

m= molality  = 1

$(278.6-T_f)K=1\times 5.12\times 1$

$T_f=273.48K$

Thus one molal solution of benzene containing a non- electrolyte (i=1) freeze at 273.48 K

Learn more about freezing point

https://brainly.com/question/859314

https://brainly.com/question/12154665