Isopropyl Alcohol Lab Report

8.Conlcusion- The main goal for this experiment was to find the molar mass of a unknown volatile liquid. We ended up getting the wrong answer because of a source of error. It is important that you understand the formulas used in this experiment. Both MW=m/n and PV=nRT are needed for this experiment.Our Unknown volatile liquid had a molar mass of 60g/mol and it is called Loopropy

The mole is a convenient unit for analyzing chemical reactions. Avogadro’s number is equal to the mole. The mass of a mole of any compound or element is the mass in grams that corresponds to the molecular formula, also known as the atomic mass. In this experiment, you will observe the reaction of iron nails with a solution of copper (II) chloride and determine the number of moles involved in the reaction. You will determine the number of moles of copper produced in the reaction of iron and copper (II) chloride, determine the number of moles of iron used up in the reaction of iron and copper (II) chloride, determine the ratio of moles of iron to moles of copper, and determine the number of atoms and formula units involved in

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.

Foil Seal: Each layer of foil is sealed with a rubber band; however, there is a possibility that the foil was not sealed tightly enough or that there was a small tear that went unnoticed. In either layer, this would result in a loss of product as the liquid organic compound reached its gaseous phase, since it would be able to escape the from the flask. If mass is lost, this will alter the mass measured and in turn, the mean molar

The reaction created in the lab was a condensation reaction, specifically a fischer esterification reaction. This reaction is created by combination of a carboxylic acid and alcohol group with loss of water. A very noticible property of ester products are the oders they produce, which is usually described as fruity. For example, propyl methanoate is described as smelling like apples. Butyl heptanoate has a distinct sent of coconut. Also pentyl ethanoate has a banana scent when created. Lastly propyl butanoate is described as smelling like pears.

In the experiment, the cyclohexanol solution is used to perform the dehydration process. Cyclohexanol is a six carbon aromatic hydrocarbon with 1 of the hydrogen atoms is substituted by 1 hydroxyl group, OH-. Through dehydration reaction, the hydroxyl group of cyclohexanol is removed causing formation of cyclohexene. Cyclohexene is a six carbon hydrocarbon with a single double bond. Cyclohexanol will undergo E1 elimination mechanism to form cyclohexene. This elimination reaction will cause the loss of a small H-X molecule from adjacent carbon resulting in formation of pi bond. All the E1 mechanism reaction will undergo a process known as heterolytic bond cleavage. The condition for this heterolytic cleavage to occur is when one atom leaves a compound with both of the original bond’s electrons. This will lead to formation of ions. For example, elimination of H-X from an organic compound involves the loss of a proton and a

For once the flask is wiped dry the water that was once weight is now gone. b. With an mass of vapor being recorded being too low this will affect the results of the molar mass of vapor in the flask and it will be reported too high. 2. With the constant touching of the flask from the first measurement to the last the molar mass recorded there can possible be error due to poor technique. With the extra weight on the flask this could add extra weight to the overall sample because a molar mass being recorded as too high.

To prepare and purify an ester: 1-pentyl ethanoate, using pent-1-ol and ethanoic acid. An annotated reaction showing this reaction is shown below:

The first experiment was with the water. Putting about 19.9ml in a beaker with mass of 28.7620g. Together the mass of the water and the beaker is 47.8462g.the mass of the water is 19.0842g by using the equation of density equal mass over volume. Plugging the numbers in the equation with is 19.0842g divided by 19.9ml equals the density of water came out to be 0.959g/ml.

Chromatography is a technique used to separate mixtures of substances into their components^2. It can be used to various activities such as separating different pigment of dyes and inks all the way to analyzing DNA sequences.

Just how drugs and alcohol can become an addiction, television can be an addiction as well. Winn’s key elements are being stated in paragraph three “television experience allows the participant to blot out the real world and enter into a pleasurable and passive mental state” (Winn). Comparing reading and television, reading can easily give you a return ticket to be part of the reality, but getting a return ticket from watching television will not be easy. Simply because some people find reading a book, magazine, etc. can be boring. Once you start watching television, the more you watch the more you become attached to the whatever the person is watching, the more it distracts you from things that are happening around you and putting aside important responsibilities. Just how Winn compares drugs and alcohol “once you start it’s hard to stop” (Winn). Another key element that Winn points out, is in paragraph six, talking about how watching television can also destroy relationships (family, friends, partners, etc.) by having lack in communication. “It weakens relationships by reducing and sometimes elimination normal opportunities for talking, for communicating”

In the experiment, the techniques of facilitated distillation and gas chromatography were used for the purpose of isolating two liquids within an original mixed solution, and to identify and calculate the percent composition ratio of each of the unknown liquids within the solution. Distillation separates and purifies different compounds by heating up the solution and finding their boiling points. There are two types of distillations, simple and facilitated. Simple distillation is the simpler form of the two, it is mainly used for the separation of a liquid and a solid from a mixture, it is also used when separating two liquids that have a difference in boiling points of greater than 40ºC. Facilitated distillation is the ideal method for separation of a number of liquids within the same solution, particularly when the difference in the boiling points are less than 40ºC. In facilitated distillation, the liquids are separated by boiling points, when the solution is heated up the liquids change from liquid gas at their specific boiling point, and then the extracted gas condenses back into a liquid. Fractional distillation is essentially thought of as a more efficient method of separation than that of simple distillation, as it is a series of

This lab investigates the question what is the effect of cinnamon, baking powder, and baking soda in the rate of cellular respiration? Fermentation is the chemical breakdown of substance by bacteria, yeasts, or other microorganisms typically involving effervescence and the giving off of heat. https://en.wikipedia.org/wiki/Fermentation

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.

Covalent bonds form when atoms share electrons. Each atom involved neither gains nor losses an electron, rather the electron pairs are shared between the atoms involved. This means that there is no change in charge. Covalent bonds are the strongest type of bond. Their strength comes from the fact that there is no loss of electrons. The strength of a covalent bond can vary depending on the amount of elections being shared. The more electrons shared, the stronger the bond. Syntactically speaking, covalent bonds are represented with lines that connect their atomic symbols. Single covalent bonds (the sharing of only one pair of electrons) are represented as H-H. Double covalent bonds (the sharing of two pairs of electrons are represented as O=O. Triple covalent bonds, the strongest of the three (the sharing of three pairs of electrons) are represented