Draw a diagram to show the strongest type of interaction between two molecules of methanol (${CH}_{3}OH$) in the liquid phase. Include all lone pairs and partial charges in your diagram.

Dimethyl ether (${CH}_3{OCH}_3$) is an isomer of methanol. Table 1 shows the boiling points of methanol and dimethyl ether.

Table 1

In terms of the intermolecular forces involved, explain the difference in boiling points.

Draw the shape of the ${POCl}_3$ molecule and the shape of the ${ICl}_4^{-}\breve{2}00b$ ion. Include any lone pairs of electrons that influence the shapes.

In a ${POCl}_3$ molecule, the oxygen atom is attached to the phosphorus atom by a double bond that uses two electrons from phosphorus.

Name each shape.

Suggest a value for the bond angle in ${ICl}_4^{-}\breve{2}00b$.

Name of shape of ${POCl}_3$: ______________

Name of shape of ${ICl}_4^{-}\breve{2}00b$: ______________

Bond angle in ${ICl}_4^{-}\breve{2}00b$: ______________