CTD Honors Chem

Reactions Lab Purpose: The purpose of the reactions lab was to test the effect of solid elements over liquid or aqueous compounds or to see the effect of what certain elements can do to others. Pictures: Favorite Reaction Although I was unable to personally experience the reactions, I did watch some on youtube and my favorite one was the magnesium metal ribbon reacting with oxygen to create the ultraviolet light. 

Solid Evidence Lab Purpose: The purpose of the solid evidence lab was to see how certain elements react with other elements and combine the different ionic solutions to find the products. Pictures: Challenged: What challenged me the most during this lab was going through each chemical equation and also learning about the reactions and double reactions. Surprised:  What surprised me during this lab was how some created color change and cloudiness while others stayed the same because of the elements either reacting or not reacting.  

Lab 5: Nomenclature Puzzle Goal: During the Nomenclature Puzzle, we completed a puzzle with the pieces of compounds that you had to match together to make a complete puzzle. The goal of the activity was to practice matching the chemical formulas and their names. Biggest Challenge: The biggest challenge in this lab was figuring out where each piece goes and how to find the piece that matches to the other piece and in the end to fit the entire puzzle together.  Biggest Contribution: Although I feel as if our entire group contributed to compete the puzzle, my biggest contribution was putting together smaller pieces that would be a contribution to the entire puzzle as well as sorting out the pieces into elements like sodium, iron, and potassium. 

Atomic Mass of Candium Purpose: The purpose of this lab was to find the average atomic mass of the element candium. To test this we used three candium isotopes being, M&M's, Pretzel M&M's and Skittles. Average Atomic Mass: .77 amus Conclusions: 1. Ask a group nearby what their average atomic mass was. Why would your average atomic mass be different than theirs? Another groups average atomic mass was 1.0 amus. Our average would be different than others because the variations of the isotopes and weight was different for each group. 2. If larger samples of candium were used, for example if I gave you a whole backpack filled with candium, would the differences between your average atomic mass and others' average atomic masses be bigger or smaller? Defend your answer. The average atomic masses would be smaller because there would be more amounts of candium meaning a larger amount to divide among and the weight of the outliers would round out. 3. If you took any ...

Chromatography Questions: 1. Why is it important that only the wick and not the filter paper circle be in contact with the water in the cup? It is important so the the design can be created by having the water spread out and pull the ink and make it into different pigments and colors. 2. What are some of the variables that will affect the pattern of colors produced on the filler paper? The variables that affected the pattern of the colors were the markers that we used, the design that was drawn onto the paper, and the amount of time it was in water.  3. Why does each ink separate into different pigment bands? The ink separates because each color dye has its own properties like water solubility making it so that  it will go onto the filter paper more or less. 4. Choose one color that is present in more than one type of ink. Is the pigment that gives this color always the same? Do any pens appear to contain common pigments? Explain. Blue was prese...

Lab 2: Determining the Thickness of Aluminum Foil Purpose: The purpose of this lab was to find the thickness of a square piece of aluminum foil. Since we could not measure the height of the aluminum foil with the ruler, we needed to find a different method to find the thickness, this leading to the purpose of the experiment.  Procedure: Step 1: Measure the length and width of the foil using a ruler. (Length = 10.10 & Width = 9.9) Step 2: Measure the mass of the aluminum foil on the scale. (Mass = .40) Step 3: Use the equation (Volume = Mass/Density) (.148 = .4 / 2.7) Step 4: Using the volume, find what the thickness(height) of the aluminum foil. (0.148 = 10.10 (9.9) H---->0.0148mm) Step 5: Turn number into a significant figure and convert centimeters into millimeters. (0.0148cm-->0.0015cm-->.015mm) Data: Thickness(Height)= 0.0015cm                         ...

Lab 1: Density Block Write Up Introduction: In this density block lab, we were trying to determine the mass of a block using its density and volume using a ruler. Purpose:  The purpose of performing this experiment is to use a ruler to measure the length, width, and height in centimeters to determine the volume and then multiplying the density of the block to determine the mass. With the result we turn it into a significant figure and measure the actual mass against the one we calculated. if it is more than 5% off, we needed to redo the procedure.  Data: After 3 tries: Calculated Mass: L (2.50) * W (2.48) * H (2.50) * D (7.5) = 116.25 -> SF= 120 Actual Mass:  123.6  Percent Error:  2.9% Discussion/Conclusion: We fulfilled the purpose of the lab in the way that we found the mass of the block with a 2.9% error after calculating the mass with the ruler. The possible errors that could have occurred in this lab was measuring ...