What? ELECTROLYTES in my refrigerator! EC - Corrigan

For an extra credit assignment Mr. Wong told us to identify electrolytes in my fridge! Here my fridge is labeled and divided into 6th different sections with each having different types of foods.

1st. Milk contains many electrolytes like sodium, potassium, magnesium, and mainly calcium which I typically enjoy with cereal.
2nd. Eggs are a great source of protein as well as electrolytes. Eggs have an abundance of electrolytes in them. Calcium is one of those electrolytes.
3rd. Vegetables of all sorts have electrolytes. Veggies are a great source of electrolytes.
4th. Yogurts and cream cheeses defiantly contain electrolytes such as calcium because milk is a key ingredient within these products.
5th. Juice, specifically orange juice must contain a decent amount of electrolytes for it is made with fruit. Potassium is very common in orange juice as well as vitamin C.
6th. Here we have some Salmon and assorted cheeses. Both have great amounts of electrolytes.

Alternate Penny Battery EC - Lawton Corrigan

Yesterday during lunch Max Lux, Justin Le, and I attempted to build a penny battery for the second time. Unfortunately we were not able to have our LED produce light. The first time I tried in 6th period I was also unsuccessful (See previous blog entry). Like last time, we started by sanding 4 pre-1982 pennies in order to expose the zinc and copper. We then stacked the pennies in between solution soaked cardboard squares. The solution was of the vinegar and water variety. To see if we had made successful battery we held an LED to both sides and we unhappy when it did not light up. We attempted using larger pieces or cardboard in a last ditch effort, but still were without a working battery. Maybe if we could somehow have gotten more electrolytes in the battery it may have had more success.

Above are images or our materials. Bottom, is a picture of our pennies and cardboard pieces stacked.

Above is our failed attempt at using larger pieces of cardboard, As you can see the LED did not light up :(.
The electrolytes present in our battery are sodium Chloride. We thought that the energy from these electrolytes passed though our device and the led would uses that energy to light up, which it did not. In conclusion I think we tried our best on two attempts, meaning that this lab most likely is some what faulty or takes extreme precision to pull off. 

Thinking about electrolytes and conductivity - Lab - Corrigan

Last Friday my group and I tried making our own electrolyte battery out of batteries. 

Above is a picture of four pennies that we sanded down using sandpaper in order to see the zinc in these pre-982 pennies. 

Next we doused our pennies and cardboard cut out square into a vinegar, salt, and water concoction.

Here is our final product which failed to light the led light (red). We made this by stacking the wet pennies and cardboard in a certain order. 

Finally we tested the levels of electricity in our battery and found it had at least some charge. (see number in device). 

The electrolytes present in our battery is sodium Chloride. We thought that the energy from these electrolytes passed though our device and the led would uses that energy to light up, which it did not. In the end, I think if we tried again we might be able to get it to work. This time might have been a little mistake somewhere in the process or just random bad luck.