Nt1310 Unit 6 Lab Report

3. Turned off the laboratory burner and observed the properties of the product in the evaporating dish.

Experiment 55 consists of devising a separation and purification scheme for a three component mixture. The overall objective is to isolate in pure form two of the three compounds. This was done using extraction, solubility, crystallization and vacuum filtration. The experiment was carried out two times, both of which were successful.

The objective of this extraction experiment was to achieve a comprehensive understanding, as well as master the practice, of the technique of separating various individual components of a compound.

The purpose of this lab was to purify a compound of benzoic acid through the process of recrystallization. This was done in a couple steps, first dissolved the product to be recrystallized in hot solvent then filtered off impurities, then filtered to isolate the crystals from the recrystallizing solvent [1]. For this method to work there were many different theories that play a role, one of the theories is solubility. Solubility is a chemical property that a solute is able to dissolve in a solvent [2]. This plays a huge role in the experiment as the first step was to dissolve the crude benzoic acid in water. Solubility was important because if the crude benzoic acid did not dissolve within the solvent then the impurities would

Next, save the excel document with the extensions, '.xlsx' and 'csv'. When the saved 'xlsx' file is loaded into ArcMap, the attributes for data type 'text' has a length of 255, with allowable null values. The numeric data type 'double' has been populated with the precision as 15 and the scale as 6. It allows null values. The data type, 'date' is populated correctly and allows null value.

Unfortunately, if we want to know how many moves it will take to transfer 100 disks from pole A to pole B, we will first have to find the moves it takes to transfer 99 disks, 98 disks, and so on and so forth. Therefore the recursive pattern will not be much help in finding the time it would take to transfer all the disks.

I received 2.5 out of 3 possible points for this question. Based on the TA’s notes, it seems as though I lost ½ of a point for not saying that “more ddNTPs will result in shorter sequences”. However, in my answer, I did in fact say that increasing the ratio of ddNTPs to dNTPS will cause DNA sequencing to stop quickly, namely at the first few nucleotides if many ddNTPs are added. Because I included such information in my answer, and given the accuracy of the rest of my answer, I’m not sure why I lost ½ of a point and instead believe that I did not deserve to lose any points, or at least did not deserve to lose ½ of a point. In other words, although I believe this did not warrant any loss of points, I certainly believe it didn’t warrant a loss

I hope that this letter finds you well. I am reaching out to provide you with a few updates regarding Miriam’s Quarter 3 grades.

During this lab each group had to figure out who did the crime based on their blood type and dominant hand. To figure out which hand is the criminal’s dominant hand you have to figure out which hand they would have used to break in. The window that was staged as the crime scene was on the left side of the room, meaning the criminal would have needed to use their right hand to break the window and get inside. At first, I thought the person that did the crime was Mr. Padilla. I thought Mr. Padilla could have been the criminal because he does not have any children, which means that he has more time on his hands to do more things.

In that case, there must be no systematic effect due the monochromatic $\gamma$ selection criterion.

Figure~\vref{fig:res}, shows the characteristic functions of the classes of the linear power amplifiers in which the active device operates as a current source. Its major disadvantage is holding a voltage to the transistor terminals during the conductance of the current, resulting in power dissipation. As shown, classes A and B are linear, while class C is incapable of storing amplitude information, hence often not be considered one of these classes.

7. Plan: Each student in a group of three will work to purify the product of the reaction with cis-stilbene, trans-stilbene, or styrene. The crude products will be purified through recrystallization. This purification process will be performed several times. When the recrystallization is complete, a vacuum filtration will be executed to filter out the crystals. An NMR spectrum will be taken of the recrystallized product.

Methods/Procedure: Write a paragraph or a paragraph that describes the steps it took to do this lab experiment.

Summary of lab procedure – what YOUR GROUP did, include KEY observations – be concise! Someone should be able to repeat your experiment from this summary alone.

To the different part of the lab was to identify the melting points of the vanillin. First, slightly less than 30 mL of water and a stir bar was added into a clean flask. Two capillary tubes were needed for contaminated vanillin and recrystallized vanillin. For each of the capillary tube, small bits of contaminated vanillin crystal was scooped into the capillary tube and a tiny bit of recrystallized vanillin was scooped into the another capillary tube. After both capillary tubes had to be labeled, that way it was much easily to remember which one which. Then, the flask was placed on the burner. Before the burner was turned on, the thermometer had to be measured inside the flask within the water. And attached with a rubber ring, two capillary