How do ionic and molecular compounds compare in terms of boiling points?
Higher boiling points are found in ionic compounds.
Ions in ionic compounds can be separated by 1000–17,000 kJ/mol, whereas molecules in covalent compounds can be separated by 4–50 kJ/mol. This indicates that the attractive forces between ions are much stronger than those between covalent molecules.
Ionic compounds, which have higher boiling points due to higher attractive forces, include sodium chloride, which boils at 1413 °C, and acetic acid, which has a molecular mass that is nearly identical to that of NaCl and boils at 118 °C.
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Stronger electrostatic forces between ions give ionic compounds their higher boiling points, while weaker forces such as hydrogen bonding, dispersion, and dipole-dipole interactions give molecular compounds their lower boiling points.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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