Monday, October 4, 2010

Lab 1-3 Separation of a mixture

In this lab mainly we mixed iron, sand and salt together. Then one by one we separated the mixture with different substances such as water and heat. We also recorded the percentages of the substances in the mixture.


Afterwards, we recorded the experimental percentages of the substances. These values didn't match the original. The reason for this is because some substances were absorbed and some were dissolved into other substances.


To make the separation better we could've used more water or heat to make the iron turn to a gas.


To find the decimal to round to use the crapiest mesurment or the lowest decimal and round to that place.


In class we are talking about elements, compounds and mixtures. We're also working on particle diagrams for those elements, compounds and mixtures. What we're doing in class also helps with this lab because the practice with math and calculations and visual representation gives us an idea of what's going on. Great lessons = Great results.

1 comment:

  1. Tyler, in reading your blogs I appreciate the time you are taking to write a good response. I see that we might have to work on the math aspects of chemistry a little, but you are doing an excellent job with your written work.

    ReplyDelete