Separation of Mixtures

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Separation of Mixtures

NaCI, SiO2, and Fe

Sarah and YashPeriod 2



Separationof Mixtures

Our Equipment



Iron filingsEvaporting DishSandSaltMagnet

4 test tubesMicroburnerFunnelFilter paperGoggles/ Apron



NaCI and SiO2

Add water and dissolve salt then use a filter to take out the sand.


Boil and evaporate H2O

H2O & NaCI


The purpose of the lab was to seperate a mixture made from, iron, sand, and salt

1. Mass the mixture and record2. Wrap magnet in plastic wrap and move throughout the mixture to pick up the iron. Place the iron in a test tube.3. Pour sand and salt in beaker and add water. Stir to dissolve all the salt with a scoopula.4. Use a funnel and filter paper to extract the sand from the salt water. Put sand to the side and allow it to dry.5. Use a microburner and pour the salt water into evaporating dish and let it boil. Wait till all water is evaporated after all salt is visible put it into a test tube.6. Mass all three SEPERATE mixtures (after sand is mostly dry) and compare with original mass.

Mass of the mixture: 64.01 g (before)Iron: 29.24 gSand: 47.10 gSalt: 34.17 gMass of the mixture: 110.5 g (after)


The purpose was to seperate the three substances from a mixture. Our seperation was successful (picture above). The sand, salt and iron were all extracted neatly and seperately. You can tell each substance was seperated because the iron was all gray and had no sand or salt particles same goes for the sand. You can tell the salt was seperated because there are no particles of gray or brown (iron and sand). The iron was easy to extract because it is magnetic so we just used a magnet to pick up all the iron from the mixture. Since salt dissolves we added H20 to it and made it into salt water and sand. The sand was easily seperated from the salt water by using a filter and finally we boiled the salt water to evaporate all the water to make it back into salt. Since water evaporates and boils this made it easy to turn the salt water back to clumps of salt. Although all three substances were seperated the sum of the seperate mixtures did not equal the sum of the original mixture. One experimental error was that since we didn't have enough time we had to take the mass of the sand while it was still wet. This caused a massive increase in mass and is also our biggest experimental error. We thought this was a fun and very helpful experiment to help us understand substance properties,but ti was difficult and required very good partner cooperation, which we know we did a great job on.


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