Q. 64.2( 5 Votes )

Calculate the fre

Answer :

We know

ΔT f= k f × m

Where ΔTf is the depression in the freezing point

Kf freezing constant for water

m is molality

The molality(m) of a given solution of glucose:

M=1.33 mol kg-1

Putting the values in the equation, we get

ΔTf= 1.86 × 1.33K

ΔT f= 2.4738K

ΔT f = T f × 2.4738K

Δt(solution) = t(solvent) ΔTf

ΔT f= Tf0 2.4738K

= 273.15 - 2.4738K

= 270.65K

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