Solutions - Set 8

MM

Mashaal Masha

Oct 18, 2022

Choose the correct options for the following questions.

Which one is the correct formula for molar mass of solute in the case of boiling point elevation?

Difficulty: Easy

A:

\rm{M_{2}=\frac{1000\,K_{b}W_{2}M_{1}}{T_{b}W_{1}}}

B:

\rm{M_{2}=\frac{1000\,K_{b}W_{2}}{T_{b}}}

C:

\rm{M_{2}=\frac{K_{b}W_{1}T_{b}}{1000}}

D:

\rm{M_{2}=\frac{1000\,T_{b}W_{2}}{K_{b}}}

Percentage of weight of NaCl if 2g NaCl is dissolved in 18g water

Difficulty: Easy

A:

10

B:

20

C:

30

D:

40