Part One: Reading Solubility Curves Use the graph to answer the following questions. REMEMBER UNITS! 1. What mass of solute will dissolve in 100mL of water at the following temperatures? a. KNO3 at 70°C b. NaCl at 100°C c. NH4CI at 90°C d. Which of the above three substances is most soluble in water at 15°C. 2. What happens to the solubility of NH; as the temperature increases? Based on this information do you infer NH3 is likely to be a solid or a gas? 3. What happens to the solubility of KCl as the temperature increases? Based on this information do you infer KCl is likely to be a solid or a gas? 4. Which substance shows the least change in solubility from 0°C to 100°C?

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Q: salt

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.