Salt, or sodium chloride, is highly soluble in water. It can dissolve in water to form a clear, colorless solution. The solubility of salt in water is approximately 36 grams per 100 milliliters of water at room temperature.
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Google Gemini AI
Jun 5
Solubility of Salt in Water
The solubility of salt (sodium chloride, NaCl) in water varies significantly with temperature and other factors. Here is a general overview:
1. Temperature: - Solubility increases with increasing temperature. - At room temperature (25°C), approximately 36 g of NaCl can dissolve in 100 g of water. - At boiling point (100°C), approximately 39.1 g of NaCl can dissolve in 100 g of water.
2. Pressure: - The solubility of salt is not significantly affected by pressure at atmospheric conditions.
3. Solvent Composition: - The presence of other dissolved substances can affect the solubility of salt. - For example, adding alcohol to water decreases the solubility of salt.
4. Particle Size: - Smaller salt particles dissolve more quickly and have higher solubility.
Factors that Limit Solubility:
- Ionic interactions: The positively charged sodium ions (Na+) and negatively charged chloride ions (Cl-) form strong ionic bonds that prevent complete dissolution. - Water structure: Water molecules form a hydrogen-bonded network that can hinder the penetration of salt ions. - Saturation point: When the maximum amount of salt has dissolved in a given volume of water at a particular temperature, the solution is said to be saturated.
Factors that Affect Dissolution Rate:
- Stirring: Agitation helps to break up salt crystals and increase the surface area for interaction with water. - Heating: Higher temperatures increase the kinetic energy of water molecules and salt ions, leading to faster dissolution. - Surface area: Smaller salt particles have a larger surface area for interaction with water, which increases the dissolution rate.