Nail Lab Day 1 and 2

We did a lab using a nail and a chlorine solution. We place the nail inside the solution and let it sit there for 2 to 3 days. Afterwards we can see the chemical reaction taking place. Within 5-10 minutes you can see the  rust begin to form. It was a really cool lab.

The next day we isolated the copper from the solution and the nail. The reaction with the iron nail left the copper remaining in the jar with the solution. We rinsed the solution out with hydrochloric acid and distilled water. This helped isolate the copper. The nail seemed to look like it had parts of it melted off. It was really cool.

Percent Yield

This was our last day of notes this semester in chemistry. It was probably the easiest lesson we will have all year. Percent yield is basically finding out the percentage of the product that was actually formed. We use the actual yield from a lab and divide it by the theoretical yield of the product and multiply it by 100. It is a fairly easy concept.
https://www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/limiting-reagent-stoichiometry/a/limiting-reagents-and-percent-yield

Limiting Reagents

This topic is just adding on to the knowledge of what we learned the other day. We compare the yields that we get of the product from the two reactants. The reactant that produces the least amount of product is the limiting reagent. It limits the amount of product that the reaction can produce.
These are some helpful links that I have found.
https://www.chem.tamu.edu/class/majors/tutorialnotefiles/limiting.htm
https://www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/limiting-reagent-stoichiometry/v/stoichiometry-limiting-reagent

Stoichiometry

This unit was over stoichiometry which is a section of chemistry that involves using relationships between reactants and/or products in a chemical reaction to determine desired quantitative data. That is the literal meaning but it is just the use of reactants or products to determine quantities among them. It is fairly easy since it is mostly conversions. Last time we did conversions I did really well on it and hopefully it wont be any harder than we have seen it to be today.
Here are some links to help with it.
https://www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome
http://chemwiki.ucdavis.edu/Analytical_Chemistry/Chemical_Reactions/Stoichiometry_and_Balancing_Reactions
http://www.chem4kids.com/files/react_stoichio.html