Luminol Synthesis Lab Report

The  resulting color  flashes were  recorded.   The cation  solutions were then disposed of in the

Discussion: The main scientific concept explored in this laboratory was the ability to observe the chemical reaction between Fe and Cu and to determine the ratio of moles of iron used to moles of copper produced in the reaction. A chemical reaction occurred when we used 4.06 grams of copper (II) chloride and mixed it with 9.43 grams of iron nails. The copper (II) chloride used 1.24 grams of iron from the nails to produce 1.99 grams of copper solid.

Experiment #6 allows parents to see how much their child is interested in toys or objects. Counting how many seconds the infant stares at them can help reveal what is inside his mind. In this experiment, parents observe the length of time the infant pays attention to a given toy before he looks away from the object. The baby is introduced to certain toys several times until the baby loses interest, or habituates, to them. This simple experiment can tell parents how an infant’s brain works and how this may affect his learning skills in the future.

Dispense .5 mL water into the already weighed conical vial, replace cap and face insert on its down side.

In order to complete a certain experiment 20g of cyclohexanol was needed to proceed. However, the stock of cyclohexanol in the storeroom was depleted and the compound was on backorder. In order to proceed with the research as quickly as possible, it was decided that the needed cyclohexanol was to be synthesized in the lab.

1. Enzymes are protein molecules that act as catalysts in chemical reactions. These protein catalysts will speed up biochemical reactions in the body without being consumed in the process.

Writing reports in organic chemistry lab may differ from the way it’s done in general chemistry. One goal of this course is to introduce you to the record keeping methods used in research labs. Such methods are designed to organize experimental data in a format similar to that required for publication in major scientific journals. Here are some important considerations that apply in research settings. 1. Your work is unique, meaning that you might be the only person performing certain experiments. 2. Research is an ongoing process. The projects assigned to you will likely continue after you leave. People assigned to those projects will need

Subsequently, the autoclave was purged with carbon dioxide and alternately evacuated 3 times, followed by adding purified PO with a large syringe. The autoclave was then pressurized to 5.0 MPa via a CO2 cylinder. The copolymerization was performed at 60°C under stirring for 40 h. The resulting viscous mixture was removed and dissolved in a proper volume of methylene chloride. The residual catalyst was extracted from the product solution by using 500 mL of dilute hydrochloric acid (5%), followed by washing 3 times with distilled water.

The discovery of Ammonia can be traced back to the Romans who discovered ammonium chloride deposits a long time ago. This compound was originally called sal ammonica which means salt of Ammon - this being the place where it was originally discovered. [1] Ammonia is known to occur

0.122 g of phenylboronic acid, 0.414 g of potassium carbonate, 0.220 g of 4-iodophenol, and a cigar shaped magnetic stir bar were poured into a 50 ml round bottom flask. Approx. 1 ml of water was added to the supplied vial containing 3 mg of 10% palladium on carbon to create a suspension. Then the suspension was added to the reaction mixture. The reaction was heated under reflux for 30 minutes until solid precipitation appear.

Standard compounds (rutin, chlorogenic acid, quercetin and hyperoside) were prepared as 0.05% solution in methanol. The concentration of test extracts was diluted to 5mg/mL with methanol. 5 µL of both extracts and standard solutions were deposited on 20 x 20 cm glass TLC plates coated with silica gel (60 A) with flourescent indicator F254. After application of the samples, the TLC plate was allowed to dry and developped in a glass chamber. The glass chamber was allowed to equilibrate with the mobile phase comprising of ethyl acetate, formic acid and water in the ratio 8:1:1 (v/v), respectively, for at least 24 hours. After development the tlc plate was dried and visualtisation of flavonoids was achieved by spraying the plate with 1 % methanolic

Prepare 11 different solutions of water and isopropanol (IPA) each with a total mole content of 0.556 mol. The mass of each compound should be measured analytically. Use a high-precision adjustable volumetric pipette to accurately measure the volume of each solution. Determine the mole fraction of IPA for each solutions then plot the total volume against the calculated values. If the resulting plot is perfectly linear, then the solution behaves ideally; otherwise it behaves like a ‘real

In this experiment, methyl benzoate was synthesized from benzoic acid and methanol with acid catalyze using Fisher Esterification. First benzoic acid and methanol were mixed in 100 mL round bottom flask. We cooled the mixture in ice and poured 3 mL of conc. H2SO4 and swirled to mix compounds. Then we refluxed the mixture for 1 hour. We let the solution cool and then decanted into a separatory funnel containing 50 mL of water and rinsed the round bottom flask with 35 mL of tert-butyl methyl ether and added that to a separatory funnel. We shook and vented thoroughly and drained the aqueous layer which contained a bulk of methanol and H2SO4. We washed the solution in the separatory funnel with 25 mL of water, followed by 25 mL of sat. sodium bicarbonate

Hypothesis: The further the away the light meter the lower the intensity will be. I think this because it common sense as if you are moving the more further away from a street light the less amount of the light you can see .So this means that the further away the light meter from the light bulb of course the intensity will be lower .

Gathering a viable understanding of the basic practices that substantial in conducting experiments in a chemistry lab is critical. In such, the purpose of this lab is to exhibit such foundations through evaluation various ways of measurement as well learning to distinguish between properties and doing so via equipment provided in the lab. The types of measurement that will be highlighted include mass, volume and density; mass as being referred to as a definite amount of matter typically revealed in the form of grams (g), volume being defined as a specific amount of space taken up by a form shown in the form of milliliters (mL), liters (L), centimeters cubed (cm3) or many others, and density being defined as a ratio of mass over volume. Observing how these measurements change depending on the substance or object is extremely beneficial. Such ways of measurement further aid in differentiating chemical and physical properties. Chemical and physical properties are what define and categorize substances. Chemical properties depict the manner in which substances behave in reactions and include the formation of a new substance, or a change in the identity of a substance. For example, oxidation or explosions are chemical changes, but in real life so is something as simple as yogurt spoiling. Physical properties do not demonstrate compositional changes or identity changes of a