The solubility of copper sulphate at 0 C
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The solubility of copper sulfate (CuSO4) at 0°C can be determined by referring to the solubility curve of the compound.
According to the solubility curve, the solubility of copper sulfate at 0°C is approximately 20.7 grams per 100 grams of water.
Please note that solubility can vary depending on the purity of the compound and other factors.
To find the solubility of copper sulfate (CuSO4) at 0°C (273 K), we need to consult a solubility table or use a reliable reference source. Solubility refers to the maximum amount of solute that can dissolve in a given amount of solvent at a particular temperature.
One method is to refer to a solubility chart or table that provides solubility data for various compounds at different temperatures. However, I will explain a commonly used method called the "mole fraction" method to estimate the solubility of copper sulfate at 0°C.
1. Begin by determining the balanced chemical equation for the dissolution of copper sulfate in water:
CuSO4 (s) ⟶ Cu^2+ (aq) + SO4^2- (aq)
2. According to the law of solubility, the solubility product constant (Ksp) can be used to estimate solubility. The Ksp expression for copper sulfate is given by:
Ksp = [Cu^2+] * [SO4^2-]
Note that the concentration of ions is enclosed in square brackets, denoting their respective molar concentrations.
3. At saturation, the concentration of copper ions and sulfate ions will be equal, as governed by the balanced equation (1:1 ratio). Therefore, [Cu^2+] = [SO4^2-].
4. Now, assume x moles of CuSO4 dissolve in 1 liter of water. This means the concentration of Cu^2+ and SO4^2- ions will each be x moles/L.
5. We can then rewrite the Ksp expression using the molar concentration:
Ksp = [x] * [x] = x^2
6. Since the molar concentration of Cu^2+ and SO4^2- ions is equal to the solubility, we can replace [x] with the solubility (S):
Ksp = S * S = S^2
7. Consult reference sources or solubility tables for the value of Ksp for copper sulfate. The Ksp value typically provided already accounts for the temperature.
8. The solubility (S) of copper sulfate can be determined by calculating the square root of Ksp:
S = √Ksp
By following these steps, you should be able to calculate the solubility of copper sulfate (CuSO4) at 0°C using the mole fraction method.