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Concentration and Solubility

This guide explores the fundamental concepts of concentration and solubility in solutions. A dilute solution contains a small amount of solute, whereas a concentrated solution has a large amount. Concentration can be adjusted by adding solute or solvent. Solubility measures the maximum amount of solute that can dissolve in a solvent at a given temperature. A saturated solution holds the most solute possible, while an unsaturated solution can dissolve more. Factors affecting solubility include pressure, temperature, and the nature of the solute and solvent.

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Concentration and Solubility

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  1. Concentration and Solubility BY: Ray Diaz, Jacob White, Daniel Hennessey, and Connary Kennedy

  2. Concentration • A Dilute Solution Is a mixture that has only a little solute dissolved in a certain amount of solute • A concentrated Solution has a lot of solute dissolved in the solvent.

  3. Changing Concentration • You can change the concentration of a solution by adding more solute. • You can also change it by adding or removing solvent.

  4. Measuring Concentration • To measure concentration, you compare the amount of solute to the amount of solvent, or the total amount of solvent. • The method used to describe the Concentration depends on the type of solution.

  5. Solubility • Solubility is a measure of how much solute can dissolve in a solvent at a given temperature. • A Saturated solution Is a mixture that contains as much dissolved solute a possible. • An unsaturated solution can dissolve more solute.

  6. Working with Solubility and Using Solubility • The solubility of a solution tell you how much solute you can dissolve before a solution Is saturated. • Solubility can be used to help identify a substance because it is a characteristic property of matter.

  7. Factors Affecting Solubility: Pressure • Factors that affect solubility of a substance include pressure, the type off solvent, and temperature. • Pressure affects the solubility of gases. • The higher the pressure of the gas over the solvent, the more gas can dissolve

  8. Solvents • Sometimes, you can’t make a solution because the solute and solvent are not compatible. • Polar compounds and nonpolar compounds don’t mix well. • For liquid solutions, the solvent affects how well the solute dissolves. • Ionic and Polar compounds dissolve in polar compounds.

  9. Temperature • For most solids, solubility increases as temperature increases. • Gases become less soluble as temperature goes up. • When heated, solutions can dissolve more solute than at a cooler temperature. • A supersaturated solution has more dissolved solute than is predicted by it solubility at a given temperature.

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