Question

Why does the quantity of various substances dissolving in water vary? Give an example.​

Answer 1

Answer:

Explanation: because of their density

Answer 2

           Quantity of various substances dissolving in water

• The quantity of various substances dissolving in water varies depending upon their solubility which is the ability of a substance to dissolve in a solvent like water.
• In order for a solute to get dissolved in a solvent, the inter-molecular forces between the solute particles and the solvent should be disrupted and broken.
• The dissolution process requires energy as well as energy is released during the process.
• Depending upon the energy and the strength of the inter-molecular bonds, and other external factors like polarity, temperature, pressure etc, the solubility of different substances varies.
• Water being a universal solvent dissolves almost most of the substances but with varied dissolution rates.
• The solubility of different substances at constant temperature per 100 g of water: Sodium chloride 36; sodium hydrogen carbonate 10; Lead(II) nitrate 54.