Solvent

The purpose of doing this experiment is to be able to determine the formula of a copper sulfate hydrate heating it up Material needed = hydrate, balance, crucible, Bunsen burner Procedure- The first thing you should do is to measure the mass of the empty crucible and then record the mass of it. Then you should fill the crucible with about 3 scoops of the hydrate and then record the mass of it. You should then heat up the hydrate filled crucible with the burner for about 10mins to allow all the

A fire retardant is designed to resist burning and withstand heat, fire-retardant materials are designed to burn slowly. An example of a fire-resistant material is used by firefighters to protect them from the flames of a burning building. Flame retardants are added into foams in mattresses, sofas, car upholstery and many other foams. When incorporated into the foam, chemicals can leak out of the products over time. This is releasing toxic gasses into the air. A synthetic coating of polydopamine

The purpose of the experiment is isolate the natural products -terpenes and acetogenins- and to observe their properties. The terpene used was used to isolate was limonene from a citrus peel, and the acetogenin that was used to isolate was eugenol from clove oil. The techniques used to isolate these two natural products was a steam distillation and extraction. The amount of eugenol that was recovered 2.39 grams. After the recovery of eugenol, an IR spectrum was obtained. The IR spectrum displayed

In this experiment, the purpose was to determine the rate law for the reaction of crystal violet and sodium hydroxide. By recording the absorbance in a calorimeter in increments of twenty seconds for twenty minutes, three graphs were constructed. From the ln(absorbance) vs. time plot, the reaction was determined to be first order with respect to crystal violet. Based on the data, the rate law for the reaction is concluded to be "rate= k [crystal violet]" . Introduction Crystal violet is a common

The purpose of this experiment was to synthesize two organic dyes then observe their effective dye strength on various synthetic and natural materials. This was achieved by means of chemical reactions outlined below, heat to increase the reaction rate, ice baths to precipitate out the product, vacuum filtration to isolate the product, washing with water and 95% ethanol to purify the product, and dying of the clothe to observe dye effectiveness. The test of the effectiveness of the dye required that

Sample Preparation Buffer A prepared with 3mM EDTA in a 125mL of deionized water. The pH adjusted to 8.0 and 10mM Tris added. The final volume of EDTA adjusted to 250mL. The Buffer I prepared 0.01M K-PO4 in 25mL deionized water, and pH adjusted to 7.5. An amount of 0.3nM EDTA prepared, 30g/L of polyvinylpolypyrrolidone added, and mixed with 0.01M K-PO4 in a separate beaker. The final volume adjusted to 50mL. Three hundred grams spinach leaves collected as a class and blended with a 200mL of Buffer

Synthesis of Bromoacetanilide An ice bath was prepared in a large beaker and a small cotton ball was obtained. 0.5 g of acetanilide, 0.9 g of NaBr, 3mL of ethanol and 2.5 mL acetic acid was measured and gathered into 50mL beakers. In a fume hood, the measured amounts of acetanilide, NaBr, ethanol and acetic acid were mixed in a 25mL Erlenmeyer flask with a stir bar. The flask was plugged with the cotton ball and placed in an ice bath on top of a stir plate. The stir feature was turned on a medium

Unknown 1 is sodium chloride(NaCl) which is ionic because sodium is a metal and chlorine is a nonmetal, unknown 2 is copper chloride(CuCl2), unknown 3 is citric acid(C6H8O7), and unknown 4 is sucrose(C12H22O11) which is also known as table sugar. From this information gathered from the facts, it can be concluded that unknown 1 and 2 are ionic, and 3 and 4 are covalent. Ionic compounds have the characteristics of having a crystalline structure, a brittle and hard texture, not being able to burn

Column one was a 30m x 0.25mm-i.d coated with 0.5 μm 5% diphenyl and 95% dimethyl polysiloxane (Rtx®-5). Column two was a 30m x 0.25mm-i.d coated with 0.5 μm midpolarity phase consisting of 50% phenyl and 50% dimethyl polysiloxane (Rxi®-17sil). Column three was a 30m x 0.25mm-i.d, capillary coating with 0.5 μm film of 100% trifluoropropyl methyl polysiloxane (Rtx®-200). The separation was performed using the same temperature program on all these stationary phases. The temperature program used for

What are the three fundamental dimensions found in physics? How are these three dimensions represented in the metric system(s) in terms of standard, quantitative units of measure? The three fundamental dimensions in physics used for measurement are length, mass and time. The metric system is used globally and is accepted as the standard unit of measurement by the scientific community. For the metric system, these dimensions are labeled as meter (m), kilogram (kg) and seconds (s). They are all broken