Karteikarten
Remote Learning Booklet -Solubility
Karten in diesem Stapel (2)
- 1Solvent - this is the substance in which other materials dissolve to form a solution Solute - solute is a substance dissolved in another substance, known as a solvent Soluble - susceptible of being dissolved in a liquid, especially water Saturated - this is the point at which a solution of a substance can dissolve no more of that substance. Solution - a solution is a homogeneous type of mixture of two or more substances. A solution has two parts: solute and solvent. Solutions can exist in different phases - solid, liquid or gas. Solubility - the property of dissolving, measured in units of mass/volumeSolids dissolve in liquid water, the solubility increases with temperature. The increase with kinetic energy that comes with higher temperatures allows the solvent molecules to more effectively break apart the solute molecules that are held together by intermolecular attractiones.
The solubility of gases in liquid decreases with increasing temperature. Conversely, adding heat to the solution provides thermal energy that overcomes the attractive forces between the gas and the solvent molecules therefore decreasing the solubility of a gas.
Boiling point of Water - 100C
The solubility curve lets us determine which material from a solution containing two or more solutes will crystallize first. - 2Filtration is a method for separating an insoluble solid from a liquid. When a mixture of sand and water is filtered: the sand stays behind in the filter paper (it becomes the residue) the water passes through the filter paper (it becomes the filtrate) 1. A beaker containing a mixture of insoluble solid and liquid. There is filter paper in a filter funnel above another beaker. 2. A solution is placed in an evaporating basin and heated with a Bunsen burner. 3. Salt solution is heated. 4. A water and ethanol mixture is heated in a flask using an electric heater. Vapour forms in the air above the mixture in the flask. 5. A pencil line is drawn, and spots of ink or plant dye are placed on it. There is a container of solvent, such as water or ethanol.Evaporation is used to separate a soluble solid from a liquid. For example, copper sulfate is soluble in water – its crystals dissolve in water to form copper sulfate solution. During evaporation, the water evaporates away leaving solid copper sulfate crystals behind.
1. A solution is placed in an evaporating basin and heated with a Bunsen burner.
2. Salt solution is heated.
3. A water and ethanol mixture is heated in a flask using an electric heater. Vapour forms in the air above the mixture in the flask.
4. A pencil line is drawn, and spots of ink or plant dye are placed on it. There is a container of solvent, such as water or ethanol.
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- Key Stage 3 Chemistry Karteikarten am Remote Learning Booklet -Solubility, erstellt von Adnaan Hajee am 16/05/2021.
- Erstellt von
- Adnaan Hajee
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