For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water: compound hydrogen-bonding force formuia or Lewis structure Between Between molecules of molecules of the the compound and compound? molecules of water? name yes yes hypobromous acid HBrO yes yes hypochlorous acid HCIO methanol 0-# Yes Yes
The Correct Answer and Explanation is:
To determine if hydrogen bonding occurs between molecules of a compound and between the compound and water molecules, let’s analyze the compounds given:
1. Hypobromous Acid (HBrO)
Between molecules of the compound?
Yes, hydrogen bonding can occur between molecules of hypobromous acid (HBrO). This is because the oxygen atom in the hydroxyl group (-OH) can form a hydrogen bond with the hydrogen atom of another HBrO molecule. The oxygen is highly electronegative and carries lone pairs, making it capable of forming hydrogen bonds with hydrogen atoms of adjacent molecules.
Between molecules of the compound and molecules of water?
Yes, hydrogen bonding also occurs between HBrO and water molecules. The oxygen in the hydroxyl group of HBrO can form a hydrogen bond with the hydrogen atoms of water molecules. Additionally, the hydrogen atoms in the -OH group of HBrO can form bonds with the lone pairs of oxygen in water molecules.
2. Hypochlorous Acid (HClO)
Between molecules of the compound?
Yes, hydrogen bonding can occur between molecules of hypochlorous acid (HClO). Similar to HBrO, the oxygen atom in the hydroxyl group of HClO can form hydrogen bonds with the hydrogen atom of another HClO molecule.
Between molecules of the compound and molecules of water?
Yes, hydrogen bonding occurs between HClO and water. The oxygen in HClO can form hydrogen bonds with the hydrogen atoms in water molecules. Additionally, the hydrogen atoms in the hydroxyl group of HClO can form hydrogen bonds with the lone pairs on the oxygen in water molecules.
3. Methanol (CH3OH)
Between molecules of the compound?
Yes, methanol (CH3OH) can form hydrogen bonds between its molecules. The oxygen atom in the hydroxyl group (-OH) can form hydrogen bonds with the hydrogen atoms of other methanol molecules. The oxygen in methanol has lone pairs, allowing it to form these bonds.
Between molecules of the compound and molecules of water?
Yes, hydrogen bonding can occur between methanol and water molecules. The -OH group in methanol can form hydrogen bonds with the hydrogen atoms of water molecules. The lone pairs of oxygen in water can also interact with the hydrogen atoms of methanol’s -OH group.
Conclusion:
In all three compounds (HBrO, HClO, and CH3OH), hydrogen bonding is present both between molecules of the compound and between the compound and water molecules due to the presence of the -OH group, which is capable of hydrogen bonding.
