cm5 - Chapter 16 Properties of solutions Making solutions...

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Unformatted text preview: Chapter 16 Properties of solutions Making solutions Whether the solute and the solvent are polar, nonpolar, or ionic determines How much will dissolve. Whether a substance will dissolve. A substance dissolves faster if- It is stirred or shaken. The particles are made smaller. The temperature is increased. Why? Stirring In order to dissolve the solvent molecules must touch the solute. Solvent molecules hold on to and surround the solute Stirring moves fresh solvent next to the solute. Dissolves faster Particle size The solvent touches the surface of the solute. Smaller pieces increase the amount of surface of the solute. Solvent and solute touch each other more often Smaller particles dissolve faster Temperature Higher temperature makes the molecules of the solvent move around faster and contact the solute harder and more often. More pieces are broken off Speeds up dissolving. Usually increases the amount of solid that will dissolve. How Much? Dissolved particles are surrounded by solvent particles Eventually solvent particles are all occupied Begin turning back to solid Equilibrium reached where dissolved particles are turning to solid as fast as solid is being dissolved No more will dissolve How Much? Solubility- The maximum amount of substance that will dissolve at that temperature (usually g/L). Saturated solution- Contains the maximum amount of solid that can be dissolved. Unsaturated solution- Can dissolve more solute....
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cm5 - Chapter 16 Properties of solutions Making solutions...

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