Separation Of A Heterogeneous Mixture Lab Report

Michael Gugliotta 11/4/14
Chemistry Period 8
Title: Separation of a Heterogeneous Mixture

Research Question: To determine separation of a heterogeneous mixture by the process of filtration.

Introduction: In chemistry, separating mixtures are used to do identify many things. When separating mixtures, some properties must be taken out in order for the mixtures to separate. An example of this would be like what we did in our lab. In this lab, we had to separate a sand-salt mixture. We did this by adding water. Water would be an example

First, we had to use the electronic balance, determine the mass of the 250-mL Erlenmeyer flask.
2. Second, we had to mass the filter paper you will use in the experiment, after you have prepared it for the funnel. Record this number.
3. Third, we had to place the weighing boat on the electronic balance. Then 0 the balance.
4. Then, we had to transfer 3-5 scoops of the sand-salt mixture into your weighing boat.
5. Next, we had to find and record the mass of this sand-salt mixture.
6. Then, we had to transfer all of the sand- salt mixture into the 250-mL beaker.
7. Afterward, we had to add just enough distilled water into the 250-mL beaker.
8. Next, we had to stir the sand- water mixture for a couple of minutes with a spoon.
9. Finally, we had to assemble the ring stand, ring, and funnel according to the diagram given.
Methods during filtration:
1. First, we had to set the 250-mL Erlenmeyer flask under the funnel.
2. Second, we had to slowly pour the salt-sand-water mixture into the funnel. We did this so all of the mixture can wind up inside of the

This occurs because when a substance is added into a flask, it gains more mass. Also the results show that the sand and the salt were able to separate during the process of filtration. This occurred because the filter paper separated the sand from the slat. My hypothesis was supportive because we did separate a mixture by using the process of filtration. The results of this experiment can be improved by repeating the steps multiple times.

Analysis and Conclusion:
1. If the total mass of the salt-sand mixture at the end of the experiment is much less than the mass of the original salt-sand mixture, what would seem like the most obvious source of error?
Losing some of the mixture during the course of the experiment.
2. If the total mass of the salt-sand mixture at the end of the experiment is much greater than the mass of the original salt-sand mixture, what would seem like the most obvious source of error?
If all the water was not evaporated while it was on the hot plate, it can lead to the flask at the end having more