Question

For ochem,

What kind of info does the IR spectrum provide?

Which Rank the C-H stretching from low to high.

The boiling point of a pure liquid is defined as _______

Explain why the observed boiling point for the first drops of distillate collected in the simple distillation of 1:1 molar solution of hexanes and toluene, will be above the boiling point of hexanes.

Answer 1

1) The boiling point of a pure liquid is defined as the temperature at which the vapor pressure of pure liquid is equal to the atmospheric pressure.

2) Explain why the observed boiling point for the first drops of distillate collected in the simple distillation of 1:1 molar solution of hexanes and toluene, will be above the boiling point of hexanes.

The first drops of distillate contains impurities. Therefore, it has higher boiling point.

3) What kind of info does the IR spectrum provide?

IR spectrum provides information about various functional groups present in the molecule.