DRY LAB$-$Separation of Mixture

Background:

A mixture is a combination of two or more pure substances that retain their separate chemical identities and properties. Since the amounts of each substance making up a mixture can be changed, the physical properties of a mixture depend on its composition. In contrast, the composition of a pure substance is constant, and thus pure substances have characteristic physical properties that do not change. Examples of physical properties that can be used to describe pure substances include solubility, conductivity, magnetism, density, boiling point, and melting point.

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. For example, if one component in a mixture of two solids dissolves in water, while a second component does not, the components can be separated by adding water to the mixture and then filtering residue.

Propose an experimental method to study the physical properties of salt, sand, and iron and use this material supplied below to design and carry out a procedure to separate a mixture of these substances.

Materials that can be used: $,$ Filter funnel and filter paper

Iron $(Fe)$ filings Magnet

Salt $(NaCl),$ Plastic bag

Sand $(SiO2),$ Ring stand and ring

Balance Teaspoons, $3$

$2$ Beakers $(50ml)$

Distilled water and wash bottle

Hot plate

Use scientific language and it can be in a bullet format. Use complete and clear statements. Write below in the space provided below only. ALSO INCLUDE HOW WOULD YOU CALCULATE $\%$ ERROR IF A KNOWN AMOUNT OF EACH SUBSTANCE WAS GIVEN TO YOU PRIOR TO YOUR EXPERIMENT.