Coke Test Lab Report

Purpose: The purpose of this experiment is to observe chemical changes in common consumer products to determine if the chemicals are basic, acidic, or remain neutral when mixed with other chemicals.

In this experiment there needs to be a chemical reaction. Also there needs to be atoms, “Baking soda and vinegar react with each other because they exchange atoms” ( UCSB Science Line ). Their also needs to be a chemical compound for baking soda and vinegar. The chemical compound for baking soda is NaHCO3. Also the chemical compound for vinegar HCH3COO. They react because baking soda is a base and vinegar is a acid that will dissolve in water.

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

The purpose of this experiment was to determine the relationship between tail spine length and hemoglobin levels as well as the relationship between tail spine length and heart rate. The concentration of the hemoglobin in Daphnia is dependent on the oxygen available to them.

Part two of the experiment focused on household items like food and cleaning products. It was interesting to see how different chemicals react with the bromthymol blue. The all purpose cleaner turned into a light yellow

This paper is a Science Fair Project about Coke and Mentos Reaction. This essay is not going to tell you about the experiment but rather background information on the subject. The background information is about Mentos reacting in Coke.

Jelly beans to help with the experiment for taste and smell (supplied by the teacher).

My science fair topic is “Which beverage stains your teeth the most?” and I chose that topic because my family drinks a lot of different beverages and we disagree on which drinks stain your teeth. The main question that I am attempting to answer is which beverage coffee, tea, soda, or grape juice stain your teeth the most. To do this, I plan to test each beverage on egg shells for five days. To monitor the beverages effect on staining teeth. The information in the following research paper will provide answers to the following research questions: 1) What beverage stains your teeth the most? 2) How does this beverage stain your teeth? 3) Is there a way to prevent staining to your teeth?

In this lab we performed four test. Using these test we discovered how the chemicals compounds Citric Acid, Calcium Chloride, Sucrose, Potassium Iodine, Phenyl Salicylate , and Sodium Chloride reacted to heat and many solutions. We also noticed that Phenyl salicylate was the least reactive out of all chemical compounds. Using the information discovered from the lab we were able to separate the chemical compounds into two groups. In group one were the chemical compounds Calcium chloride, Citric acid, Potassium iodide, Sodium chloride, and Sucrose these chemical compounds reacted to three of the four test. Group two was just Phenyl salicylate which reacted to only one of the four test. We also were able to state that group one was a covalent compound group and, group two was an ionic compound

The Mentos and soda react due to nucleation. When the carbon dioxide from the soda mixes with the Mentos, the carbon dioxide is squeezed into liquid it’s looking for a way out. It’s trying to hook on to it can and those things are nucleation sites. Since the Mentos are coated with A TON of sugar that is also contains tons and tons of nucleation sites which causes pressure to build up and BAM It explodes.

We discovered that the acetic acid reacted only with baking soda and sample #2. The acetic acid did not react with the sucrose or the table salt. During the conductivity test, the conductivity meter showed that the aqueous form of each substance, sample 2 included, conducted electricity. As the conductivity test produced no conclusive data, we based our determination of sample 2’s nature on the reaction with acetic acid. Sample 2’s reaction was only comparable to that of baking soda, leading us to believe sample 2 is indeed baking

2. What does the yellow food color represent at the end of the experiment? What does the Congo red represent?

2. (5 pts) List and explain the names and affiliations of the various characters/stakeholders in this story – I’m looking for us to use the story to map out the complexities that are generally associated with solving public health puzzles – the stakeholders you list and explain here should apply to many of the cases we consider going forward.

The soda ash form experiment 3 was obtained. A 250 ml beaker was obtained and rinsed.

In this experiment, the pKa, dissociation constant, of 2-naphthol was determined by measuring the UV-visible absorption spectra of solution of the acid at different pH values.