Chem Lab Mixture of Solutions
Title: Separation of Mixture of Solids - Experiment 3
Date: 9/21/13
Purpose: This experiment is designed to show the different ways to separate solid mixtures into individual elements. It will also determine whether a substance can be considered “pure” or not, as well as determining the solubility of each mixture in water.
Procedure:
1) Weigh the amount of the mixture on the digital scale. Separate the Iron out by using a magnet to filter out the Iron element.
2) Take the remaining mixture and add 50ml of distilled water to the remainder and combine in a beaker.
3) Heat the mixture and bring to a boil to rid the mixture of salt and benzoic acid. Separate into two cups, and observe how when the mixture is left to cool down in an ice bath, the benzoic acid crystallizes as it decreases in heat.
4) In the remaining cup, heat the sand until the solution is completely dissolved. The sand should be left.
5) Using the cooled solution of benzoic acid crystals, filter out the benzoic acid from the table salt using funnels.
6) Calculate the percentage amount for each solution and net amount, record data in table.
Data Table 1:
Substance
Grams (g)
% of Mixture
Iron fillings(Fe)
1.8g
27.69%
Table Salt (NaCl)
1.9g
29.23%
Sand
1.7g
26.15%
Benzoic Acid
.8g
12.31%
Total:
6.5g
100%
Observations:
1) The iron was easily separated using the magnet to draw out the iron fillings
2) The table salt was calculated using filtration and evaporation
3) The sand was calculated through evaporation
4) The benzoic acid formed crystals after the cooling bath and was obtained through filtration
Questions:
A. How did your proposed procedures or flow chart at the beginning of the experiment compare with the actual procedures of this experiment?
My proposed procedure was a lot more condensed and summarized as to the actual procedure which involved many steps and techniques. Though, my flow chart did produce similar results.
B. Discuss
Date: 9/21/13
Purpose: This experiment is designed to show the different ways to separate solid mixtures into individual elements. It will also determine whether a substance can be considered “pure” or not, as well as determining the solubility of each mixture in water.
Procedure:
1) Weigh the amount of the mixture on the digital scale. Separate the Iron out by using a magnet to filter out the Iron element.
2) Take the remaining mixture and add 50ml of distilled water to the remainder and combine in a beaker.
3) Heat the mixture and bring to a boil to rid the mixture of salt and benzoic acid. Separate into two cups, and observe how when the mixture is left to cool down in an ice bath, the benzoic acid crystallizes as it decreases in heat.
4) In the remaining cup, heat the sand until the solution is completely dissolved. The sand should be left.
5) Using the cooled solution of benzoic acid crystals, filter out the benzoic acid from the table salt using funnels.
6) Calculate the percentage amount for each solution and net amount, record data in table.
Data Table 1:
Substance
Grams (g)
% of Mixture
Iron fillings(Fe)
1.8g
27.69%
Table Salt (NaCl)
1.9g
29.23%
Sand
1.7g
26.15%
Benzoic Acid
.8g
12.31%
Total:
6.5g
100%
Observations:
1) The iron was easily separated using the magnet to draw out the iron fillings
2) The table salt was calculated using filtration and evaporation
3) The sand was calculated through evaporation
4) The benzoic acid formed crystals after the cooling bath and was obtained through filtration
Questions:
A. How did your proposed procedures or flow chart at the beginning of the experiment compare with the actual procedures of this experiment?
My proposed procedure was a lot more condensed and summarized as to the actual procedure which involved many steps and techniques. Though, my flow chart did produce similar results.
B. Discuss