Purpose The ultimate purpose of this experiment is to go through the copper cycle through various steps that include dissolution, precipitation, conversion, and reduction of copper. Throughout the processes the qualitative observations were recorded to see what effect each type of acid and decanting has on copper. All of these steps were successfully completed by using different acidic solutions and zinc to take copper through the cycle from copper solid to copper nitrate to copper hydroxide, to
1. What type of macroscopic evidence for chemical change did you observe during this experiment? Give at least three different examples. (15 points) The main evidence of chemical change in this lab is the change in color, production of gas, and the production of precipitate. These reactions can be seen from just a little bit of reaction all the way up to a complete change of the entire sample tested. Some samples of those tested in this experiment which showed the chemical reaction were the baking
Quaternary ammonium compounds (QACs), also known as quats, are usually positively charged molecules with a nitrogen atom that has four other bonds (Sabapathy, 1994). Because of the positive charge on the nitrogen atom, quaternary ammonium compounds are formulated as a salt and are usually paired with a negatively charged compound or ion (Sabapathy, 1994). In terms of practical use, QACs are commonly used as a broad spectrum antimicrobial. In other words, it affects the two major types of bacteria
The perfect example of this situation is when we had to change labs for our advanced lab testing portion related to the Partner for Health program. Originally we used HDL labatory however due to some recent bad press we no longer felt this lab was a reliable option. We had to re-assure both the patients and the client that they would recieve the same quality of testing that they were use to with previous lab draws. As part of choosing a labatory, I reseached labs that offered similar advanced lab
Date Submitted: 5/24/2015 Date Performed: 5/24/2015 Lab Section: Chem-180 Course Instructor: Professor Lea Stage Addendum to Lab 1: Physical and Chemical Properties. 1. Did you observe any chemical changes in this experiment? Yes, there was a variation of noted chemical changes in this experiment. 2. What evidence did you use to decide that something was a chemical change? There was an assortment of different changes indicating that chemical changes were taking place such as
1. Accurately records experimental procedures. I think this objective means that we need to make sure we understand the procedure or steps for the lab. Knowing the steps for the lab is extremely important because especially in chemistry if something is done out of order it can be dangerous. So recording the procedure in our lab book is important. This relates to my major of Political Science in that in Political Science, recording down things accurately is very important and if something isn’t recorded
When I was five years old, I remember that my grandmother would always tell me to pick up after myself. I was not heavily involved in any chores at this age, but I was required to clean up the play area when I was done playing with my toys. My room had three clear plastic containers, where I would store all of my toys. Since, the storage containers were big, cleaning up and putting all my toys away was a breeze. At the age of nine, I remember that my responsibilities were much greater. At this age
Skype Interview: Uses of Technical Equipment Maggie Anderson EDL 606 Judicial and Ethical Considerations March 28, 2015 William Carey University Skype Interview: Uses of Technical Equipment When I face-timed Mr. “H” the Director of Technology at “XYZ” School District, his first response upon answering the phone was, “Why are you face-timing me? You are down stairs in your office come on up stairs”. I explained that it was an assignment for my graduate class and he graciously agreed to answer
I was scrolling through the weekly microbiology email update when the rare job section caught my eye. I saw there was an opening to be a lab assistant. I immediately filled out the application and attached my resume, hopeful that I would be considered for an interview. After I submitted my application, I began to anticipate what the microbiology lab would be like.Would there be other freshman working as assistants? What sort of research would they conduct? Finally, the day arrived to find out. The
The purpose of this experiment would be to see how implementation intentions affect self-affirmed individuals. Researchers would want to see if goal intention would increase a positive behavior change, and for the purpose of this experiment, the behavior change in question would be an increase in exercise. To understand the purpose of this proposed experiment and to make an accurate prediction of the results, one must first understand the two theories being test: the self-affirmation theory and implementation