Sodium thiopental

with a watch glass. The solution was stirred until the acetanilide was dissolved. The flask was brought to the hood and 7.0g of pyridinium tribromide was added and then stirred for about 30 minutes with a watch glass as a cover. While stirring, 10% sodium bisulfite was added in 1ml increments until the orange/red color disappeared or was less intense. After, the solution was cooled in an ice water bath. Once crystals formed, the solution was filtered using a funnel. The product was then…

complex equipmentation but more elaborate chemical operation under which morphine is refluxed with acetic anhydride for about 5 hours results into the formation of Diacetyl morphine, i.e., heroin. It is seperated when the solution gets neutralize with sodium carbonate or washing soda in which heroin gets separated as a precipitate. It is collected and purified by treating it with hydrochloric acid by which Heroin hydrochloride salt is obtained. Heroin is also called as ‘brown sugar’, in maxico…

This experiment was performed at the University of Louisiana at Lafayette campus on March 7, 2017. Pots were prepared using 30 0.95-liter black plastic pots. Each pot was labelled sequentially from 1 to 30 along with the soil treatment it would receive, either 100% vermiculite or 90% vermiculite, and the planting density, either 1, 2, 4, 8, or 16 seeds planted. The 100% vermiculite soil treatment was then prepared by using a clean 0.95-liter black plastic pot and adding 15 pots of vermiculite to…

1. Which analytical balance is the more accurate? Why? 2. Which piece of glassware is best at measuring the density of water? 3. What two aspects of the data set you cited in Question 1 define it as “best”? 4. What does “standard deviation” measure? 5. (a) Calculate the standard deviation of the data set you labeled as having the least random error in the first experiment with pure water. (b) Calculate the standard deviation of the data set you labeled as having the MOST random error in the…

It is important to note that the goal of this experiment was to find the pKa value of bromothymol blue, a pH indicator commonly used in titrations. [UNC, 2017] The pKa is where the number of moles of acid to conjugated base are equivalent. To find this, both Beer’s Law and spectroscopy were utilized in an attempt to make graphs to show just where this value occurred. According to Sigma-Aldrich, the pKa of bromothymol blue is approximately 7.10. [SIGMA, 2017] The final pKa found experimental was…

Examined T. californicus ability to handle high temperature stress under short-term, small exposure to high temperature, and long-term, persistant exposure to constant high temperatures. The took populations of T. californicus from 11 pools at different latitudinal gradients in a local scale. They put the specimen in petri dishes with founding adult females. They only mate one time and store the sperm so they can produce many groups of offspring. To test if inbreeding could influence the…

Much of the workflow for ceramics production remains the same over the many years this art form has been practiced. When centuries ago, a potter starting the process workflow of producing a ceramic mug (or more likely a jug), he would go to a river bed and collect the clay. Now, Angel Pottery’s supplier is currently a clay supplier in Amherst, Massachusetts. In this supplier’s factory, they use mixing augurs to produce the raw material clay. From factory to home factory, the clay bags are…

It simply used, a test tube, meniscus, and pipette. Then a 15 cm long sprig of elodea was placed in the test tube, after 2 cm was cut from the stem. The test tube was the filled with sodium bicarbonate solution, with 3 cm left at the top of the test tube. The volumeter stopper was then placed in the test tube. The stopper was the adjusted so the solution extended 1 to 2 cm into the pipette. The volumeter test tube apparatus was then…

Purpose: The objective is to separate the heterogeneous mixture of salt, iron filings, and salt into each pure form using filtration, evaporation, and magnetism. Background: When separating a mixture, preferably to separate a mixture that includes a soluble liquid and a insoluble solid, filtration is the best because solid molecules are bigger than liquid molecules. A filter contains pores that are small enough to let small partials though the pores while holding back the larger particles.…

What’s in This Toothpaste is a formal and informational essay. Bodanis’ essay has an overall explicit thesis, which is to be aware of ingredients in your toothpaste hence the title “What’s in This Toothpaste?” Some background information for the reader would be that Canadian laws require manufacturers to label all ingredients on a product (Bodanis, 10). Bodanis starts by listing the three major ingredients; water, chalk, and titanium dioxide. Next, he describes other enhancing ingredients in the…