Chemistry AQA GCSE past paper

pH was recorded every time 1.00 mL of NaOH was added to beaker. When the amount of NaOH added to the beaker was about 5.00 mL away from the expected end point, NaOH was added very slowly. Approximately 0.20 mL of NaOH was added until the pH made a jump. The pH was recorded until it reached ~12. This was repeated two more times. The pKa of each trial are determined using the graphs made on excel.

It is very important to try hard to reduce your chances of getting an illness or getting injured. For example, when you go snowboarding during the winter, it is very important that you wear enough clothing to stay warm and don’t get cold. Also, it is important that you wear protective gear to keep you safe. Also, if you have a certain disease, it is important that you take care of it. Like for people with asthma, they have to make sure they take their medication so that they can reduce the risk of them having an attack. Another thing you can do is make sure you get vaccinated for diseases. I hope that through this issue, you can learn the different ways to reduce your chances of getting an illness or infection.

Received a call from Pete they were unable to print from their Canon ImageRunner 1025IF printer. Connected into his computer and found the printer was showing as offline. Running and advanced IP scanner we found the printer IP address of 192.168.1.200, which was within the scope, was taking by a phone. Removed the IP from DHCP and called Charles and had him power cycle the printer. I was still unable to access the printer. Called and walked Chris through checking the IP address configurations on the printer which was set to 192.168.1.168, which was also within the scope, checked IP address on the network and found an android phone had the IP address. Removed the phone and had Chris reboot the printer, but I was still unable to access the printer.

To begin, we formulated a method in which each unknown substance and compound were compared to find their molar relationships. In the experiment we calculated the molar mass of every compound by determining the amount of moles per gram in each element using the periodic table and then added them together. We then

Accelerated Chemistry I is a demanding course that involves critical thinking and problem solving. Throughout the course you will be asked to analyze data, draw conclusions, process new information, and build your own understanding of chemistry concepts. Only after you have investigated new ideas will you discuss them formally. The model we will be using in class is - engage, explore, explain, evaluate. You will be asked to analyze common occurrences such as melting ice cubes and burning candles in order to understand the chemical processes that allow them to occur. You will analyze the relationship between macroscopic properties and microscopic structures, which in turn will help you to gain a better understanding of the world around you,

As the first written assignment (due January 22, 2016) for the Junior Chemical Engineering Lab (CHE 352) taught by Professor Burrows, I will be endeavoring to provide a superior reflection of my personal standards and assignment quality. Although this assignment will be submitted to Professor Burrows, the individual that this assignment will benefit the most is me. This work will allow me to focus on data research, data analysis, professional writing skills, and advance my knowledge concerning the technical requirements of this course; thus, directing me towards a higher level of professional document writing and presentation. Through completion of this assignment, the guidelines of Professor Burrows will prepare me intellectually for the challenges of future written projects in this course, thus making my material easier to read and evaluate.

Trish, could you please order 1 Duracell AA batteries, pack of 24 item# 458914 (billed to ARC), 1 Duracell AAA batteries, pack of 20 item# 587526 (billed to ARC), 1 Office Depot Cleaning Duster, pack of 3 item# 911245 (billed to ARC), and 1 Memorex CD/DVD sleeves, pack of 100 item# 646510 (billed to ARC).

Note: Your prelab/lab report is to be done in your carbon copy lab notebook (sold in FIU bookstore)

Connected into J’s computer because she was having issues with her VMWare, she also stated her mouse started moving on its own. Checked for any remote software on her computer besides our own. Updated Java and removed all old version. Installed all windows updates and reboot her computer. She was able to connect to her VMWare, but it would close shortly after. Ran a repair and VMWare. Rebooted her computer, and confirmed she was able to access her

This is my assignment one for the course CHE 432 at Arizona State University. The instructor for this class Dr. Burrows. Assignment one is due on Wednesday, August 30, 2017. There is no progress for date as this is the first assignment for the course. The assignments in this course will help me learn about chemical processes.

Society relies heavily on metals in nearly every aspect of life; however the corrosion of such metals has become a costly and very prevalent issue worldwide. Large amounts of energy, time and money has been poured into

clip_image002Outline the role of photosynthesis in transforming light energy to chemical energy (including raw materials needed for this process)

Procedure: Refer to pages 67-76 of General Chemistry 1210: General Chemistry Laboratory Manual by the Department of Chemistry, The Ohio State University, Hayden-McNeil Publishing, 2016.

Fifield, F. W. and Kealey, D. 1995. Principles and Practice of Analytical chemistry. (4th ed) Glasgow, Blackie Academic and professional.

Abstract: Cold packs are based on the principle of endothermic reactions, which means a reaction that absorbs heat from the surrounding resulting in a temperature drop. Due to this temperature drop, cold packs have many benefits when it comes to injuries such as sprains and strains. It cools the local tissue and reduces bleeding, swelling and pain. It also aids in a speedy recovery. The most commonly used chemical in instant cold packs is ammonium nitrate which will be tested in the investigation along with four other chemicals in water. These other chemicals include potassium nitrate, potassium chloride, sodium acetate and sodium chloride. The