which of the following would have the hoighest boiling point: 1-bromethane, acetic acid, or ethane?

acetic acid since it can do hydrogen bonding.

and the first one is bromomethane

what do you mean by bromomethane is the first one?

oh..I thought you had a typo.

but it's the same regardless (acetic acid has higher boiling point)

To determine which compound has the highest boiling point among 1-bromethane, acetic acid, and ethane, we need to consider their molecular structures and intermolecular forces.

1. 1-Bromethane (CH3CH2Br): This compound consists of a methyl group (CH3) attached to a bromine atom. It is a nonpolar molecule, and its intermolecular forces are primarily London dispersion forces.

2. Acetic acid (CH3COOH): This compound contains a carboxyl group (-COOH) attached to a methyl group (CH3). It is a polar molecule due to the presence of electronegative oxygen atoms. Acetic acid can form hydrogen bonds between its oxygen and hydrogen atoms, resulting in stronger intermolecular forces compared to 1-bromethane.

3. Ethane (CH3CH3): This compound consists of two methyl groups bonded together. It is a nonpolar molecule, and the only intermolecular forces it exhibits are London dispersion forces.

Considering the intermolecular forces, acetic acid has the highest boiling point among the three compounds due to the presence of hydrogen bonding. Hydrogen bonding is a stronger intermolecular force than London dispersion forces.

So, the compound with the highest boiling point is acetic acid.