Proof of Alcohol Lab Report

There are several sources of error to this experiment due to random and systematic errors. The only source of random error was the measurement that we took through the graduated cylinder which was only accurate to the nearest 1%. We took the largest error from this one percent, which was +/- 3. The largest relative error this yielded was only 3%, so this did not affect how precise this experiment was too much. We can still make this more precise by making the masses of the water larger. For example if we started the masses at 300mL and went up by 50mL, the largest error this would yield would be 2% due to the largest error being +/- 5. This would cause smaller errors in the amount of water.

The thought of alcohol being involved in fatal crashes brings about an emotional response. Recently, there has been a movement based on emotion rather than logic to change a certain drinking and driving law. This involves lowering the Blood Alcohol Content (BAC) from 0.10% to 0.08% nationwide. However, this attention is misdirected. By looking at my personal experiences, statistics, and current laws, it is clear that there is no need for lowering the BAC.

Introduction: long ago the government banned the ability to make alcohol. This has caused a huge uproar which then people started to boot legging, as more and more people started to drink in the safety of their own homes. After the government saw how people were protesting this new law, they decided that they should left the ban. Since then people were able to drink in public, which in return has created another issue, now that they are drunk at a bar, how do they get home. Rather than taking the safe option and utilize some of the state and local programs and call a tow truck, the Driver chooses to just drive how drunk. They think that it’s ok, since they do not have their full mind.

9. The accepted value for the density of water is 1 g/mL and the accepted density for isopropyl alcohol is 0.786 g/mL. Determine the percent error between your calculated densities and the accepted values for both water and isopropyl alcohol. Record the percent error in Data Table 4.

Weight 10 dry Post-82 pennies which get 24.91g, using 30ml initial volume measuring the volume of 10 pennies, record the data 3.2ml. Using equation Density= Mass/Volume, get the density of the post-82 pennies is 7.78g/ml. Then calculate the error%=0.04%, and the deviation%=1.60%.

The proof (twice the % alcohol) starts at its maximum and goes down (as the alcohol evaporates). If we start with a high concentration of alcohol, we will get the azeotrope (95% alcohol, 5% water) for a while, then the concentration will decrease.

Let me tell you that the majority of automobile accidents in America results from alcohol. The alcohol consumed will be existed in blood and it is known as Blood Alcohol Concentration (BAC). In this condition, someone will experience lowered alertness which can cause someone to loss of judgement and reduce their ability to track moving object. Beside lowered alertness, the muscle control will be lessened causing difficulty steering and less ability to maintain lane position and brake appropriately. People in a state of drunkenness are also hard to detect danger. It may reduce their response to emergency driving situations.

This experiment was done in order to understand both fractional distillations and gas chromatography. In addition, this experiment was done to separate and identify two liquids that made up an unknown mixture. Gas chromatography was used to figure out the ratio of these two liquids.

The purpose of this lab is to separate a mixture and determine the percentages of each of the ingredients. Each substance will have a different boiling point due to its intrinsic properties and from that, we will be able to determine the purity of different products as we evaporate off the next level of product.

On 02/11/2016 at 1436 hours, I was dispatched to Wawa (1060 Delsea Drive) for a report of an intoxicated male fumbling to unlock his blue Ford F-150 that was parked in the parking lot. Upon my arrival, I observed the vehicle in question leaving the parking lot traveling northbound on Delsea Drive. P/O Ziegler #5196 who arrived with me was able to conduct a motor vehicle stop on the above vehicle as I turned around in the parking lot of Wawa. After I arrived to the stop, P/O Ziegler and I approached the F-150 bearing NJ registration E80GFJ from the passenger side. As I requested the driver now identified as Shawn J. Hammell for his credentials, I observed his hands to be shaking and fumbling as he turned over his documents to me. I then ask Shawn if

experiment was 1,980 grams and the mass of the gummy bear in water before the experiment

The study of alcohol as an academic experiment can be traced back to the 1700s when J.J. Plenc proposed the chemical identification of poisons (Center for Studies of Law in Action,

In this experiment, the pKa, dissociation constant, of 2-naphthol was determined by measuring the UV-visible absorption spectra of solution of the acid at different pH values.

There’s a lot more to alcohol than you think. Alcohol, ethanol, and proof are all terms incorporated with alcohol. Without the proof of a specific measurement of ethanol in your drink, it wouldn’t be considered alcohol. Alcohol itself is a chemical compound structurally similar to carbohydrates, with one or more hydroxyl (OH) group. Ethanol would be the specific type of alcohol found in beer, wine, and distilled spirits like whiskey and vodka. Proof would be the measured amount of alcohol content in a liquid. When you drink your body has to metabolize the alcohol just like any other acids. Our body does this while the alcohol reacts through a series of oxidation. This means a small amount of the alcohol is metabolized in the stomach before

An alcohol bath was prepared with an ethanol solution and dry ice, the solution was measured using a thermometer, at approximately -15˚ the bath was placed under a Polaroid filter and above a stable jar upon a white piece of paper. The capillary level holder with the frozen capillary tubes was placed carefully into the bath (at an angle to reduce effervescence). A lamp was placed 20 cm away from the setup and shone on the Polaroid filter. This setup ensured the ethanol solution didn’t heat up too rapidly.