Question

PROBLEMS
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1. Calculate the molal boiling point constant for chloroform from the fact that its boiling point is 61.2°C and
0.1 molal solution of an organic substance in chloroform boiled at 61.579°C.
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Answer 1

According to be Brogile equation λ=hmv

Mass of electron =9.1×10−31kg

Planck's constant =6.626×10−34kgm2s−1

Velocity of electron =1 % of speed of light

=3.0×108×0.01=3×106ms−1

wave length of electron (λ)=hm

=(6.626×10−34kgm2s−1)(9.1×10−31kg)×(3×106ms−1)

=2.43×10−10m

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