Are you all high while you are writing or just so frustrated with what others are saying that you are not paying attention to your typing?
Dan July 25,3: Place the Erlenmeyer flask in an ice bath for 30 minutes. After the reaction was complete some unreacted acetic anhydride and salicylic acid was still be present in the solution as well as some sulfuric acid, aspirin, and acetic acid.
The percent yield of purified aspirin product was 5. It does do alot of good for those who NEED it. The phenol group that will attack the carbonyl carbon of the Percent yeild lab essay example anhydride is the —OH group that is directly attached to the benzene since it is more basic than the —OH group attached to the carbonyl group.
Marijuana has 20 times the tar of a cigarette and cigarettes have filters.
These plants contain a compound called salicylate, which creates these curative attributes. Reply Link carol November 15,6: This would add to the weight of the product, resulting in a high percentage yield.
In table format record your qualitative observations for each of the five reactions. In a chemical equation, there are two sides. Find someway to experience joy and pleasure in a world that is intent on trying to deny you that.
I am a little skeptical of how we can be so sure of the cyclone activity in, say, the year AD. The statement that marijuana does no permanent damage to your brain is, to put it bluntly, extremely naive.
Ole November 17,6: Next, place a few crystals of the crude product in a test tube labeled A and put to the side for later use.
A second minor objective is to find the actual mass and moles produced of NaCl. It is a very mathematical part of chemistry. During this cooling, each solute molecule in turn approaches a growing crystal and rests on the crystal surface.
Another possibility for wrong measurements would have been if the sodium bicarbonate were added to the evaporating dish over the balance because some of the sodium bicarbonate could have spilled onto the balance. Taking this into account, the actual mass of the purified aspirin product is reduced to 0.
Today aspirin, also known as acetylsalicylic acid, is an over the counter medication that is extremely popular and is used for relieving pain, reducing fever, reducing swelling, and slowing blood clotting. Shall I go on?? The errors discussed address the reasons as to why this occurred, and solutions were provided to avoid these errors in the future and increase the accuracy of the experiment.
Leagal alcohol is harmful! Get off the drugs. Turn the capillary tube back to the upright position.
Link Blackyb August 28,2: Before you correct people, take a look at your own grammar, you know-it-all! Tony June 10,4: The need for the strong conjugate base is the reason why other strong acids such as HCl is not used since its conjugate base Cl- is very weak compared to HSO Also leave the remaining 20 mL of DI water in the mL beaker in its ice bath.
Precautions were made in order to avoid this, by placing the wet filter sheets into a closed environment. The mixture of solid and liquid was poured through a filter paper in a Buchner funnel.
Jethro November 3,8: Alcohol once had the same status. Allow the mixture to cool to room temperature. That may be the only way to prevent the tears from streaming down your face when you lie on your bed, staring at the ceiling this evening.
Obviously, you cannot use the keyboard. Link Dave June 30,5:Determination of Yeild Essay. A+. Pages:7 Words This is just a sample.
To get a unique essay. The main theory proven in this lab experiment was the topic of percent yield. Introduction Stoichiometry is an important topic when dealing with chemistry. An example of this given by Coefficients () is 2H2 + O2 –> 2H2O.
In this. Determination of % Yeild Essay Sample. The main theory proven in this lab experiment was the topic of percent yield. Introduction. says that an element inventory is first made. For example, if there was the equation H2 + O2 –> H2O, it would be written down that on the left side there are 2 hydrogen and 2 oxygen, and on the right side.
Esterification of Isopentyl Alcohol to Isopentyl Acetate Essay Sample. The technique for esterification that was employed in the experiment was to use a reflux apparatus (Figure 1) while heating in order to evaporate out water to drive our reaction into the product favored direction.
The percent yield of the purified aspirin product was 5. 77%. Next a phenol test was performed on the crude aspirin product, the purified aspirin product, and salicylic acid as a control.
The phenol test was to test the purity of the aspirin product that was created during the experiment. My percent yield was negative because the molar mass mass that I collected in the lab was more than the accepted molar mass.
The goal of the lab was to find the. Smoking Marijuana is something that many people assume to be a safe and risk-free recreational activity.
The drug, which has countless street names (such as Pot, Herb, Green, Ganja, Chronic, etc.), has gained a reputation for helping to .Download