Separation Of A Mixture Lab

The objective of this extraction experiment was to achieve a comprehensive understanding, as well as master the practice, of the technique of separating various individual components of a compound.

This experiment uses the separation technique of filtering. What type of mixtures can be separated using filtering? Is filtering a physical or chemical filtering technique?

substance present in greatest amount • Solute- substance (s) present in smaller amounts • Homogenous= of similar kind, or a uniform consistency • Heterogenous= of different kind How to figure the concentration of solutions? • 1 % or parts per 100 parts • 10%, 20%, & 85% glucose 2. Colloids- is a heterogenous mixture with solutes that are invisible & don’t settle out (jello, cytosol) 3. Suspensions- is a heterogenous mixture with visible solutes that tend to settle out (blood) • Mixtures-

There are various techniques to separate a mixture of compounds from each other. One of the commonly used way to isolate compounds from a mixture of two compounds is called extraction. This method of extracting two compounds from each other relies on the different solubility of the compounds in two different solvents.

Since we obtain an unknown proportion of a mixture, it’s important to mention that a mixture is a result of a combination of two or more pure substances that do not react chemically. The physical properties of a mixture depend on its composition because the amounts of each substance making up a mixture can vary. By taking advantage of the unique physical properties of individual components within a mixture, it should be possible to separate a mixture into its components. Mixtures have the following fundamental properties:

A compound had a constant composition and as a hydrate it is considered a pure substance. According to the law of definite proportions, a compound always contains the same elements in the same proportions by mass, regardless of the amount of the sample, where it was found, or how it was prepared. The hydrate contains water molecules that are not easily detected by the naked eye, it looks rather dry and

Concept 2.1 Matter consists of chemical elements in pure form and in combinations called compounds

The purpose of this experiment was to separate a two component mixture using fractional distillation. Distillation is a process of vaporization than condensation of a substance, used primarily to separate substances from a mixture when there are different boiling points. Fractional distillation is when the mixture has multiple substances with similar boiling points, and a fractional column is used to create multiple vaporization/condensation cycles. Fractional distillation is important when two or more substances need to be separated, but they have similar boiling points.

Quantitative analysis is the determination of an amount present in a variety of settings. On the other hand, qualitative analysis is the determination of non-numerical information about a reaction, such as observing that a reaction results in a color change. There are chemical changes that separate cations and physical separations, such as decanting, where liquid is poured from a solid-liquid mixture, leaving the solid behind. Centrifuging is another separation technique, where a solid is separated from a liquid by whirling the mixture at high speed. A mixture of metal ions in a solution can be separated by a reaction of precipitation and in this experiment, the metal cations of aluminum, nickel, and iron ions will be separated from a solution

These layers can be separated through the use of a seperatory funnel which drains the bottom layer into a separate container. This method uses the understanding of partition ratios of solutes to different paired solvents to produce an equilibrium leaning towards one solvent over another, thereby extracting a compound from one liquid to the other (Padias 128-37). For example, consider a mixture containing two solutes, solute A and solute B, and two immiscible solvents, solvent A and solvent B. If solute A dissolves well into solvent A, but not very well into solvent B, and solute B dissolves well into solvent B but not very well into solvent A, there would be a higher ratio of solute A in solvent A than in solvent B, and a higher ratio of solute B into solvent B than in solvent A. One can then see that, through the use of different solvents, two dissolved solutes can be separated from a mixture. This ratio of a solute concentration to different solvents is defined by K, the distribution constant. Successive filtrations yield’s a higher percentage of products.

Get all the ingredients and Materials. Add the iron,coconut,sand and salt into a beaker. Get the magnet and hold over the iron pieces close enough to pick them up and once all the iron pieces are picked up put them aside. Add 100mls of water to the beaker and stir the water and the substances with the stirring rod wait for the coconut to float up to the top and then use the spatula to scrap up the coconut, put aside also. Now all we have left is sand and salt now we wait for the salt to dissolve. When all the salt has dissolved. We need to get the filter and filter paper and fold how is requied then put into a conicail flask and slowly tip with mixture onto the filter paper, When is all filtered you will get all the sand filtered out

Solvent – A solvent is the liquid that dissolves the solute to create the solution.

Another term to remember when considering changes chemical and physical is the law of conservation of mass. This law simply means that matter can neither be created nor destroyed. Two other terms that are important when describing the properties of substances undergoing changes are extensive and intensive properties. An intensive property is a physical property of a substance that does not depend upon its size such as viscosity. Extensive properties however do depend on a substance’s size such as mass and volume.

Chromatography is a separation technique in which the mixture to be separated is dissolved in a solvent and the resulting solution, often called the mobile phase, is then passed through or over another material, the stationary phase. The separation of the original mixture depends on how strongly each component is attracted to the stationary phase. Substances that are attracted strongly to the stationary phase will be retarded and not move alone with the mobile phase. Weakly attracted substances will move more rapidly with the mobile phase.

Thou, blending, mixing and agitation are a number of the most standard terms that are used interchangeably blending is a light method as a result of it combines two and more solids during an absolutely blended state, it generally adds a little quantity of fluid to the product.