What do polar solvents dissolve?
The rule of thumb is that “like dissolves like”. Polar/ionic solvents dissolve polar/ionic solutes and non-polar solvents dissolve non-polar solutes. For example, water is a polar solvent and it will dissolve salts and other polar molecules, but not non-polar molecules like oil.
What are two factors that affect the solubility of a particular solute?
Solubility is the maximum amount of a substance that will dissolve in a given amount of solvent at a specific temperature. There are two direct factors that affect solubility: temperature and pressure. Temperature affects the solubility of both solids and gases, but pressure only affects the solubility of gases.
Which of the following compounds solubility will not be affected by a low pH in solution?
As strong base is added to strong acid that leads to formation of salt and water. It means that solubility of AgCl is not affected by low pH in solution.
How does pH affect precipitation?
Selective Precipitation Using pH In this technique, pH is often used to control the concentration of the anion in solution, which controls which cations precipitate. The concentration of anions in solution can often be controlled by adjusting the pH, thereby allowing the selective precipitation of cations.
At what pH will CuS begin to precipitate?
0.5
What is specific precipitation?
Selective precipitation is a technique of separating ions in an aqueous solution by using a reagent that precipitates one or more of the ions, while leaving other ions in solution. Qualitative Analysis for Metallic Elements.
What are the conditions for a precipitate to form?
Precipitation reactions occur when cations and anions in aqueous solution combine to form an insoluble ionic solid called a precipitate. Whether or not such a reaction occurs can be determined by using the solubility rules for common ionic solids.
What is a precipitate and how is it formed?
Precipitate: In chemistry, a solid formed by a change in a solution, often due to a chemical reaction or change in temperature that decreases solubility of a solid. In meteorology a precipitate is liquid or solid water (rain, snow, etc.) falling from the sky.
What is a precipitate in a chemical reaction?
A precipitation reaction refers to the formation of an insoluble salt when two solutions containing soluble salts are combined. The insoluble salt that falls out of solution is known as the precipitate, hence the reaction’s name. Precipitation reactions can help determine the presence of various ions in solution.