Final answer:
The solubility of copper sulphate in water is influenced by temperature, presence of complexing agents like ammonia, and the chemical composition of the water.
Step-by-step explanation:
Factors Affecting Solubility of Copper Sulphate in Water
Three main factors that can affect the solubility of copper sulphate in a fixed volume of water are:
- Temperature: Generally, the solubility of solid solutes in water increases with rising temperature. As such, heating water can dissolve more copper sulphate. Conversely, cooling the water will decrease its solubility, potentially leading to precipitation of the salt.
- Presence of Complexing Agents: When substances like ammonia (NH3) are present, they can form complex ions with Cu2+, thereby increasing the solubility of copper sulphate. This is because the complex ions are more soluble than the copper ions alone.
- Chemical Composition of the Water: The solubility of copper sulphate is also influenced by the pH or the presence of other ions in the water, which might react with copper sulphate, changing its solubility.
In addition, it's important to note that the solubility of a substance in water is a precise measurement requiring identification of the specific solvent, and that gases have differing solubility tendencies from solids when exposed to temperature changes.