Separation of Mixtures and Solids
LS Separation of Mixtures and Solids
Purpose: To become familiar with the separation of mixtures of solids
Hypothesis: I will be able to separate the materials using a variety of different methods. First, separate the iron fillings using a magnet. Second, I will put the rest of the solution into water and separate the insoluble sand from the soluble salt and benzoic acid. Third, I will filter out the benzoic acid when crystalized. Lastly, I will evaporate the water away leaving crystallized salt.
Procedure:
Separating Iron;
1) Use your digital scale to determine the mass of your weighing dish. 2) Empty the entire mixture from the plastic bag into the weighing dish and determine the gross mass of the total mixture and weighing dish. Compute the net mass of the mixture
3) Spread the mixture into a thin layer over a sheet of paper.
4) Cut a second piece of paper into a 10-cm square. Weigh and record its mass and set it aside.
5) Wrap some plastic over the magnet. Remove the iron powder/filings by passing the magnet over the surface of the mixture. Repeat several times to make sure you’ve collected all the iron.
6) Holding the magnet over the square of paper, remove the plastic and release all the iron to fall onto the paper. Weigh and determine the net mass of the iron powder
Separating Sand;
1) Put the remaining mixture, containing sand, benzoic acid, and table salt into your beaker and add 50 mL of distilled water.
2) Set up the beaker stand and burner fuel and heat the beaker of solids and water to near boiling. Stir the mixture to make sure all soluble material dissolves. The benzoic acid and the sodium chloride should have dissolved and been extracted from the insoluble sand.
3) Pour the liquid while it is hot into a small paper or Styrofoam cup.
4) Pour another 10 to 15 mL of distilled water into the beaker containing the sand, bring the mixture to a boil, and decant again into the same cup used before. This
Purpose: To become familiar with the separation of mixtures of solids
Hypothesis: I will be able to separate the materials using a variety of different methods. First, separate the iron fillings using a magnet. Second, I will put the rest of the solution into water and separate the insoluble sand from the soluble salt and benzoic acid. Third, I will filter out the benzoic acid when crystalized. Lastly, I will evaporate the water away leaving crystallized salt.
Procedure:
Separating Iron;
1) Use your digital scale to determine the mass of your weighing dish. 2) Empty the entire mixture from the plastic bag into the weighing dish and determine the gross mass of the total mixture and weighing dish. Compute the net mass of the mixture
3) Spread the mixture into a thin layer over a sheet of paper.
4) Cut a second piece of paper into a 10-cm square. Weigh and record its mass and set it aside.
5) Wrap some plastic over the magnet. Remove the iron powder/filings by passing the magnet over the surface of the mixture. Repeat several times to make sure you’ve collected all the iron.
6) Holding the magnet over the square of paper, remove the plastic and release all the iron to fall onto the paper. Weigh and determine the net mass of the iron powder
Separating Sand;
1) Put the remaining mixture, containing sand, benzoic acid, and table salt into your beaker and add 50 mL of distilled water.
2) Set up the beaker stand and burner fuel and heat the beaker of solids and water to near boiling. Stir the mixture to make sure all soluble material dissolves. The benzoic acid and the sodium chloride should have dissolved and been extracted from the insoluble sand.
3) Pour the liquid while it is hot into a small paper or Styrofoam cup.
4) Pour another 10 to 15 mL of distilled water into the beaker containing the sand, bring the mixture to a boil, and decant again into the same cup used before. This