Title: Separation of a Mixture of Solids
Purpose: Learn and demonstrate how to separate different ingredients from a mixture of solids using different methods based on the properties of each ingredient.
I weighed mixture and tools, and proceeded to begin separating each ingredient. I used a magnet to separate the iron from the mixture. Then I heated the mixture in water to get the non-soluble sand out. Then I filtered out the benzoic acid after cooling it into a crystal form. Lastly, I allowed the water to evaporate leaving behind only the salt. If any party was interested water does not evaporate fast enough for my liking. Data:
MIXTURE + WEIGHING DISH
NET. MASS OF MIXTURE
10 CM SQUARE OF PAPER
IRON FILINGS ON PAPER
NET MASS OF FILINGS
SAND + WEIGHING DISH
NET. MASS OF SAND
SEPARATING BENZOIC ACID
BENZOIC ACID CRYSTALS + FILTER PAPER
NET. MASS OF BENZOIC ACID CRYSTALS
I HAVE A LITTLE LEFTOVER BENZOIC ACID AT THE BOTTOM OF THE CUP THAT I COULDN’T GET TO POUR OUT, AND A FEW CRYSTALS LEFT IN WATER AFTER FINISHED WITH THIS STEP THAT APPEARED LATER WHILE EVAPORATING.
SEPARATING TABLE SALT
SALT CRYSTALS + PAPER CUP
MAY HAVE BEEN SOME ACID CRYSTALS STILL AT SURFACE OF WATER NET. MASS OF SALT CRYSTALS
A. I thought it was rather obvious to use the magnet for the iron filings, but really did not have an educated guess for how to separate the rest.
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