Potassium hydroxide

Lisandro Velazquez and Olivia Wainwright Honors Chemistry Period 5 Group 13 Topic: Acidic Relations in Chemistry October 6, 2017 Science Fair Assignment (2) Background Research Acidic Relations in Chemistry is the topic of this experiment. In this experiment, the scientists will be testing the strength of pH and the amount of TDS (total dissolved liquids) in both gunpowder green tea and caffeinated

The Best Cleaning Solution for Coins Emily Mojtabaee Physical Science 8 Honors Mrs. Brill Period 6 10/09/17 Introduction Statement of Purpose The purpose of this experiment is to find out what solution, out of water with a specific amount of soap, orange juice, and dishwasher liquid, makes coins, specifically quarters, the cleanest. The control group in this experiment are the quarters. The independent variable are the types of liquids used, while the dependent variable is how clean

concluded, the coffee contained caffeine and other impurities such as tannins and cellulose. 2. The potassium carbonate used in this experiment is used as a base and reacts with the gallic acid in in the carboxylic acid of the hydrolyzed tannins. When the potassium carbonate reacts with the tannins it produced potassium salts that are water soluble. Also the phenol groups in the catechin react with the potassium carbonate to form salts that are water soluble. When the salt is formed this separates the aqueous

The results of the experiment prove the hypothesis of the group. It was hypothesised that the less diluted the acid is, the faster the ant-acid will dissolve. The results show this, as the ant-acid in the 0.5M acid took 9:02 minutes to dissolve; the ant-acid in the 1.0M acid took 2:50 minutes to dissolve and the ant-acid in the 2.0M acid took 2:09 minutes to dissolve. The trend of this experiment is the downward slope of the time when the acid becomes stronger, however, it is not as mathematically

The main material of this experiment was HCT-116 ( human colorectal carcinoma) cells where RNA isolated. Method was applied with Rneasy Mini Kit- Qiagen. Homogenization was done by 70 % ethanol. Microcentrifuge and its tubes, pipettes, pipette tips and gloves were other materials of this experiment. In the beginning, the cells were centrifuged for 5 minutes at 300xg then supernatant was eliminate. Then, the remaining pellet was ease with flicked the tube. After that, 350 µL Buffer RTL was added

Purpose: To perform a reaction and analyze the results using stoichiometry. Materials & Safety: • 3M Hydrochloric Acid (HCl) • Centigram Balance • Aluminum Foil • Weigh Boat • 100 mL Beaker • 50 mL Graduated Cylinder • Safety Googles • Apron Procured: Step 1: Put on safety googles and apron. Step 2: Obtain approximately .25 grams of Aluminum Foil and make observations of the foil. Record the exact mass in your data table. Step 3: Obtain 50.0 mL of 3 M HCl using a graduated

Blue Lagoons of Iceland There are various places I would like to experience in my lifetime, and this place is definitely one of them. It is called the Blue Lagoon and is located in Grindavik, Iceland. It may not sound very appealing, but there are many things about it that make it special. Countless people have probably never even heard of a lagoon. A lagoon is a stretch of sea water separated from the sea by a low sandbank or a coral reef, but this lagoon has something unique about it. It is

Question of the day: What is the stoichiometric ratio of reactions in the chemical synthesis of the (2, 4-pentanedianato) iron (III) complex ion? Hypothesis: The stoichiometric ratio of the reactants in the chemical synthesis of the (2, 4-pentanedianato) iron (III) complex ion is 3:1. Experimental Method: A filtration apparatus was set up. Solid iron(III) chloride hexahydrate was dissolved in water. In a separate container, sodium acetate trihydrate (NaC2H3O2 x 3 H2O) was also dissolved in water

Part A- Aldol Condensation of Tetraphenylcyclopentadienone • After completing the experiment, a yield of 0.01 g of an impure, solid purple, precipitate was created, however this yield will not be considered for percent yield or for future use due to its impurity in nature. This conclusion on the purity of the substance is drawn from the information for pure tetraphenylcyclopentadienone; pure tetraphenylcyclopentadienone has a characteristic black/purple tint to its crystals, and said crystals are

Limiting Reactant Lab Abstract The purpose of this lab was to use stoichiometry (fixed molar ratios) to determine quantitatively how Copper (II) Chloride and metallic aluminum react, known as an oxidation-reduction reaction. By varying the quantities of CuCl2H2O and Al and observing the reaction we were able to determine the limiting and excess reactants, and were also able to use stoichiometric calculations to determine the theoretical yield of Cu and then compare it to the actual yield of Cu to