Add a piece of Aluminum foil into the water and observe. 3CuCI2(aq)+ 2AI(s) =…
Name: Sebastian Sak Lab Partners: Tim Gronet TA: Feifei Xu Determining Molar Enthalpy of Dehydration of Sodium Acetate Trihydrate Purpose: In this lab, two solid substances, sodium acetate and sodium acetate trihydrate, will be analyzed for the heat of solution for both processes. This allowed the calculation of the molar enthalpy of dehydration of sodium acetate trihydrate. Calorimetry was used to experimentally determine the heat of solution for both reactions.…
The purpose of this experiment is to determine the pH of known substances by use of a pH color indicator of red cabbage and the use of a pH meter. As well as, to observe the pH changes in a substance by adding in more basic of acidic to buffered solutions and unbuffered solutions. This experiment will also will show how to calculate H3O+, OH- and pH by use of known values. In order to do this lab, there are a few key components one needs to know and understand first.…
These procedures had slightly different measurements in order to ensure the best results: .3 g of aluminum compared to .25. They were also written in more specific detail with additional steps and different methods of reaching the same product of producing copper. The procedures, unlike the original set, performed the reaction without the hot plate before going through intense rounds of decanting the copper and drying it with the hot plate. After completing the lab and coming to an understanding of the process and reaction, it can be concluded that the given procedures for the experiment were efficient and safe while the original procedures were not. The original procedures carried out the reaction, or the adding of the aluminum to the copper (II) sulfate pentahydrate solution, on the hot plate which could've led to a disastrous result as the reaction itself was enough to bubble the solution and darken the aluminum.…
Next, heat the beaker over a hot plate on medium heat until the colour fades into a lighter shade. Remember to stir occasionally, and stop heating after the colour changes. Allow the beaker to cool before measuring the mass of the beaker with anhydrous copper (II) sulfate, and record the mass onto a table. Find the mass of the beaker with anhydrous copper (II) sulfate, and record…
1. a. My data demonstrated the law of conservation of mass in part 5 of the experiment, dissolving sugar in water. The law of conservation mass states that matter cannot be created or destroyed by can enter or leave the system. The system’s change in mass was 0.00 grams, resulting in support of this statement.…
Placed the probe in unknown solution created from the solubility test. Pressed collect and recorded the average…
There may have been errors in the lab that may have affected the results of the lab. There may have been mistakes: a person may have not measured the substances correctly while retrieving the liquids in the graduated cylinder, or not have been watching the conductivity probe while the group was measuring the electrolyte solution. Along with these, there is also the issue of timing the testing incorrectly. Adding onto this, there may have been a slight spill where the accurate amount of the substance being used was not completely added into the water for testing.…
Nettie Stauts January 26, 2018 CDT-2413 Module 1 Lab Parents Perspective: The parents were apprehensive, but eager, entering their son Luke in a child care program. They were getting early intervention home-centered services in which Luke had progressed with assistance from his therapist and babysitter. He lacked social developmental skills and they heard about inclusion although unfamiliar with the concept. They were adapted interacting with Luke through gestures and augmentative communication devices yet anxious about his communication in the classroom.…
Following the Ways of the Scientific Method The scientists solved the Elkhorn Coral mystery using the scientific method by following each step of the method to come to a conclusion as to what is killing the coral. The followed the steps precisely so that would not make any errors during their trials. They started with the first step of the scientific method, making an observation.…
Procedure: Before beginning each experiment, remove all clutter from the workstation and read the directions for the experiments thoroughly. Part 1: Warm slightly more than 300 mL of water to approximately 70 degrees Celsius. Measure out 150 mL of water into the coffee cup calorimeter. Take the temperature of this water in the coffee cup calorimeter once it has reached a steady temperature. Then, add an ice cube approximately the size of a large marshmallow.…
In this lab, we carried out a variety of reactions using different chemicals and metals. A chemical reaction is when the chemical state of the substance you are testing rearranges its ionic and molecular structure. One of the reactions we experienced was single replacement, this consists of one ion switching places with another ion to form a new compound. Another reaction we saw was double replacement. In this reaction, two compounds ions are switched to form two new compounds.…
Phys 221 Section September 12, 2016 Experiment 2: Motion Reba Chamblee Partner: Erin Jacoby Results: PART 1: Distance In this portion, it was determined that as one walks away from the detector the slope is positive and becomes steeper the faster the motion. When there is movement towards the detector, the slope of the graph becomes negative.…
Experiment Summary The purpose of this experiment was to determine the copper content of brass using iodometry. This was accomplished by creating a thiosulfate solution and standardizing it by titrating using a known amount of KIO3. The second part of the experiment involved preparing a brass sample and allowing copper to react with excess iodide to form I2. The resulting I2 was then titrated with the thiosulfate standard.…
In order to get precise quantitative data, I chose to use a titration method to find the ascorbic acid content in juices. The specific technique that I chose to use is the iodine solution method. Despite there being many other viable options to this titration process, I chose the iodine solution method because the color change is easiest to detect when using juices. The other tests are simple when using clear solutions, but on juices, the color change 000166-XXX 6 is not as apparent due to the colors of the juices, making it harder to get accurate results.…