Question

What type(s) of intermolecular forces exist between PH3 and CO32-?

Answer 1

Dispersion Forces and ion dipole.

Mainly because the dispersion forces of london is a temporary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles. This force is sometimes called an induced dipole-induced dipole attraction. London forces are the attractive forces that cause nonpolar substances to condense to liquids and to freeze into solids when the temperature is lowered sufficiently.

An ion-dipole force is an attractive force that results from the electrostatic attraction between an ion and a neutral molecule that has a dipole.

• Most commonly found in solutions. Especially important for solutions of ionic compounds in polar liquids.
• A positive ion (cation) attracts the partially negative end of a neutral polar molecule.
• A negative ion (anion) attracts the partially positive end of a neutral polar molecule.

This is what happens to PH3 and CO3^2- . The PH3 has a dipole and CO3 has a charge,therefore, a ion dipole force is formed.

Hope this helps