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The ions of salt are very attracted to the dipoles of water molecules, which results in more water molecules being attracted to salt ions than gas molecules. Because of this, there are less molecules capable of dissolving the gas.

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11y ago
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6mo ago

Gases are less soluble in salt water than in pure water because the presence of salt ions in the water disrupts the hydrogen bonding between water molecules. This reduces the ability of gases to dissolve in the water, as the solubility of gases is primarily dependent on the strength of the intermolecular forces in the solvent. Additionally, the salt ions may also compete with the gas molecules for solvation, further decreasing gas solubility.

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Q: Why gases are less soluble in salt water than in pure water?
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