Question 3 1 pts A solution of calcium chloride (CaCl2) is in equilibrium with u

Question

Question 3 1 pts A solution of calcium chloride (CaCl2) is in equilibrium with undissolved solute at 45°C. What will happen if the temperature is raised to 50°C? (In an unsaturated calcium chloride aqueous solution, the solubility increases as temperature increases). The mass of dissolved CaCl2 will be unchanged. O The mass of dissolved CaC2 will decrease. O The mass of water in the solution will increase The mass of dissolved CaCl2 will increase. Question 4 1 pts When the external pressure above a solution is increased, which answer describes the solubility of a solid solute and gas solute? It doesn't have any effect on the solubility of a solid solute; The solubility of a gas solute increases. O It doesn't have any effect on the solubility of a solid solute; The solubility of a gas solute decreases. O The solubility of a solid solute increases; The solubility of a gas solute increases. O The solubility of a solid solute decreases; The solubility of a gas solute increases.

Explanation / Answer

Ans 3 : the mass of dissolved CaCl2 will increase.

Since the solubility of CaCl2 is directly related to the temperature , such that an increase in temperature leads to greater solubility of CaCl2 in the solution. So the mass of dissolved CaCl2 in the solution increases and that of undissolved CaCl2 decreases.

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