Question

Answer the question as indicated to earn all available points.

A Chemistry student was given the following mixture: Small Styrofoam pellets, sand, salt, 1 cm

diameter copper bbs, and iron filings. He/she has access to the following materials and equipment:

beakers, magnets, sieves with 5-mm holes, hot plates, watch glasses, tweezers, coffee filters, and

small fish nets.

Describe how he/she would separate each component from the mixture, what material/equipment

he/she would employ, and which property (ies) of matter he/she would use to separate each

component from the mixture.

The narrative should be written in the form of a step-by-step procedure that any student in a lab can follow without you being there to explain.

***In order to obtain ALL possible points, EACH component MUST have ALL 3 requirements as

indicated above. (description of how the material would be separated, materials used in the separation,

and physical property (ies) used to separate it.)

Answer 1

3 The mixture of small styrofoam, pellets, Sand, copper bbs and Jyon fillings and salt separated as follows Iron is magnetic and other substances are not magnetic, which means a magnet Could be used to attract the iron filling out the mixture. Then pour a remaining mixture in a beaker and add water pour a small amount of water into the beaker and let the styrofoam float to the top and take it out with tweeters. After removing styrofoam the mixture is heated and allow it to cool until it's safe to handle Pour the salt water into a separate Container Boil and then desiccate the the washing aciet and wash it out to recover the salt. Dissolve the remaining mixture with an oxidizing acid and wash it out. eg) HNO₂ place Heat with stirring to dissolve the copper. filter and wash several times with a hot water. The washings will contain copper nitrate which can be turned into a copper powder. al de

5 then dry and recover the sand by coffee filter, when the solution is dried. Now, we separates the mixture of small styrofoam by using tweezers., Iron fillings by magnet salt by boiling and day it in watch glass.. Copper by using Coffee Rilter and sand by small fish I het.