• Concentration gives the amount of substances in a solution. As with any equilibrium, standard conditions are assumed, i.e. A solvent is a compound or mixture of compounds in which the solute is dissolved. Bases "Zn(OH)"_2 is a sparingly soluble base. When dissolving a gas within a liquid, the pressure of the gas has a huge effect on its solubility. If the solvent is a pure compound, you are at the maximum strength and this question becomes redundant. When a gas dissolves, it does so because its molecules interact with solvent molecules. According to the Henderson-Hasselbach equation, the relationship between pH, pKa, and relative concentrations of an acid and its salt is as follows: where [A-] is the molar concentration of the salt (dissociated species) and [HA] is the concentration of the undissociated acid. Solubility is the ability of a substance to dissolve in another substance. When the pressure of a gas is low, the number of gas molecules that hit the surface of the liquid at any given time is low; as a result, there are fewer chances for the gas to dissolve. Factors Affecting Solubility (Catalog No. Specifically, this video describes the relationship between the temperature of a solution and the solubility of a solid. Solubility and Factors Affecting Solubility. The effect of temperature on solubility In general, solids become more soluble as the temperature increases . Precipitation Reactions and Solubility Rules (Catalog No. Le Chatelier's Principle states that if a stress (for example, heat, pressure, concentration of one reactant) is applied to an equilibrium, the system will adjust, if possible, to minimize the effect of the stress. Section 2 - Factors that Affect Concentration. Solubility and Factors Affecting Solubility. Solubility is the amount of solute in 100 cm 3 (100 mL) solvent.. Example: In 100 g water at 20 0 C, 36 g salt can be dissolved. First we need to define what a solvent is. Here are two common examples. What is the difference between Concentration and Solubility? K_(sp) is a MEASURE of solubility. • If the solubility of a material is high in a solvent, then its concentration will be high in the solution. The larger the K_(sp) constant, the more soluble is the salt. Thus solubility of salt at 20 0 C 100 g water is 36g/100g. Many sparingly soluble compounds have solubilities that depend on pH. Effect of Temperature on the Solubility of Gases. The effect of temperature on solubility can be explained on the basis of Le Chatelier's Principle. Solute pKa, Solvent pH, and Solubility. The solubility of gases in liquids decreases with increasing temperature, as shown in Figure \(\PageIndex{2}\). Decreasing the pH increases the solubility of sparingly soluble bases and basic salts. Attractive intermolecular interactions in the gas phase are essentially zero for most substances. > Increasing the pH has the opposite effect. 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