Limiting Reagent Lab Activity - Corrigan

This time in Mr. Wong's 6th period chemistry class we investigated the reactions of vinegar and baking soda. We used math to determine the limiting reagent when using different amounts of baking soda and measuring the circumference of balloons!

Below is a excel spreadsheet of our data and results:

Here are some pictures of us conducting the experiment:

Analysis Questions

1. What are the limiting and excess reagents for each flask?

The excess reagent was the baking soda and the excess reagent was the vinegar. We were able to conclude this by noticing that there was vinegar left over but all of the baking soda had been used up in the reaction.

2. How is the amount of product in a reaction affected by an insufficient quantity of any of the reactants (reagents)?
According to the law of conservation of mass, there will always be the same amount matter on the reactants side as the products side. Because of this when there is less reactants the out come will be less as well.
3. Which balloon was the largest? Explain.
The green balloon was the largest because that was the flask we put the most baking soda into (4 g). With the vinegar this caused the largest reaction. The reactants where large so the products where as well.
4. Which balloon was the smallest? Explain.
The smallest balloon was blue because it had the least amount of baking soda go into it (1 g). There was an excess of vinegar. Because the reactants were small the products where also small.
5. Rust is produced when iron reacts with oxygen. How many grams of Fe2O3 are produced when 12.0 g of iron rusts?4Fe(s) + 3O2(g) → 2Fe2O3(s)
81.6 grams are produced.
6. What real-life applications can this concept of limiting and excess reagents be applied to?
This idea can be applied to making sandwiches. For instance, if you need 1 meat and two bread in order to make one sandwich and you had 100 bread but only 5 meat, then you can only make 5 sandwiches even though you will have a lot of bread left over. 

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. 

Lab: Reactivity of Metals - Lawton Corrigan, Matt Pinelli, Ben Bigelow

Mendalien Info graphic - Corrigan

Today in Mr. Wong's class we needed to quickly come up with a Mendailen info graphic for Mr. Wong to present above is my graphic and below is my explanation of it! I chose to make the red arrow weight gain for the aliens eat more and gain more weight because of it. This is same as the black arrow because as you go across the aliens eat more and become fatter. The orange arrow represents increased sadness or loss of happiness because of hair loss, the opposite goes for the blue arrow. When these aliens loose hair and go bald they become sad. The brown and yellow arrows represent the sexual attraction gained or lost by aliens due to finger count. The green and purple arrows represent how well the aliens do in school based on number of arms. The more arms, obviously the easier work is to get done. 

Mundailens! - Lawton Corrigan

Today in Mr. Wong's 6th period chemistry class, we searched for the missing Mendailen! Below are my findings.