Experiment Essay

936 words - 4 pages

Experiment 2: The Chemistry of Copper

I. Introduction

Copper is one of the most important metals because it is one of the best conductors of heat and electricity and an alloying element in bronze and brass. Copper is a soft metal with a bright orange-brown color in which is often called “copper color”. Also, copper is an element that is chemically combined with several of compounds in nature. Usually, these compounds are blue or blue-green depending on the copper(II) species. In this lab we are to observe many of the physical and chemical properties of copper by cycling copper via several chemical reactions; those reactions being, Oxidation Reduction, Acid-Base and ...view middle of the document...

I noticed that there was a double layer of colors within this reaction. The bottom layer was a green/blue color and the upper layer was a blue color. These were the distinguished colors that I noticed, but the overall color was a light blue precipitate. To test the basicity of the solution, I grabbed a red litmus paper and tested the solution. If the solution turned the red litmus paper to blue, it meant that the solution was complete. Therefore, the solution was complete due to the fact that the red litmus paper turned blue.
Part C: Decomposition Reaction
Since the precipitate, Cu (OH)2, from part B already had a volume of 60 ml there was no need to add any more water. However, the magnetic stir bar speed up the chemical process because stirring the process was taking up a large amount of time, more than eight minutes. For that reason, the magnetic stir bar quickly changed the color. The bottom of the beaker contained black precipitation of CuO resulting into a colorless solution.
Part D: Double Displacement Reaction
At this point the black precipitate, CuO, from part C still remains in the beaker. Since the beaker was placed in the hot plate, I had to wait for the colorless solution of CuO to cool down to room temperature, which took approximately about 10 minutes. As the black CuO was poured into a clean Erlenmeyer, vapor/gas was formed inside the flask. Since 6 M HCL was added, it caused the solution to turn green.
Part E: Complex Formation
At this point, I removed the filter funnel containing the CuO and then I pour 10 mL of 6 M aqueous ammonia solution into a small graduated cylinder. Using a disposable pipette, I added the 6 M aqueous...

Other assignments on Experiment

Egocentrism In Older Adults Essay

459 words - 2 pages leads to a sense of purpose. The next stage that was defined was school age (6-to 11 years) Industry vs. Inferiority-Children needs to cope with new social and academic demands. These two theories are surrender with Piglet the mountain task of logical development. These two theories are described upon a demonstration known as the three mountain task The first experiment is when a child is place in front of a tabletop model of three mountains, and is

Floating Boat Essay

534 words - 3 pages Isael Tore Science Experiment Rubber-Band Powered Altoids Boat 5th Grade Teacher: Mrs. Gainous Problem The purpose of my project was to find out which rubber-band powered Altoids boat would work better? My project consisted of two boats one small boat and one large boat. Hypothesis I predict that the small boat will propel the longest time. My prediction is that the small boat will

Speed Of Sound Lab Report

642 words - 3 pages length of the tube. Materials & Procedures: The materials that were used in this experiment were: * Computer * Vernier computer interface * Logger Pro * Vernier Microphone * finger * 1 meter-long PVC tube closed at one end * Thermometer * meter stick The experiment started with measuring the room temperature. The Vernier Microphone was attached to Channel 1 of the interface. The graph of sound level vs

The Philidelphia Foot Patrol Experimnt

512 words - 3 pages The Philadelphia Foot Patrol Experiment Identify the purpose of the research study, problem, and questions. * The purpose of this research was to determine if police foot patrols can improve community perception of the police and reduce fear of crime and prevent actual crime Describe the design of the study. * In Philadelphia, their resources consisted of 60 patrol locations; researchers identified the highest violent crime corners

Scientific Inquiry

662 words - 3 pages Scientific Inquiry Javier Bryon AIU Online Abstract By using the controlled experimental method we can prove or disprove hypothesis in question. During the experiment we can come to a conclusion on whether further experimentation is needed or other hypothesis need to be implemented to solve a question. Introduction Blue porch ceilings are quite prevalent along the east coast, there are many theories as to why, from keeping evil

Hess Law

1570 words - 7 pages EXPERIMENT 3 Title : EXPERIMENTAL APPLICATIONS OF HESS’S LAW Objective : To determine the heat of reaction by applying Hess’s Law for reactions whose energy cannot be easily measured directly. Introduction An exothermic reaction releases heat into the surroundings and is usually observed as temperature increases in the solvent, container, and other immediate surroundings. The amount of heat released from the reaction can be expressed as

Analysis

331 words - 2 pages Introduction Will there be a difference in behavior due to the difference in size? This experiment investigated the different of behaviors shown by two crayfish of the same gender, but of different sizes. The objective of this experiment were to apply the scientific method to the agnostic behavior of the crayfish, carefully handle the crayfish and let them acclimate to the environment, and discussed the differences in territorial behavior

Telepathy

763 words - 4 pages back to back. I didn’t know why having the chairs facing back to back would help but I felt it to be necessary. Before we got seated I started out by asking simple questions like “How was your day?” and “How are you feeling?” in an attempt to build a better rapport for the experiment to come. I then told him to take a seat and to clear his mind. I then explained to him that I needed him to answer as quickly as possible when I asked him the next

Computer Management System

430 words - 2 pages you want to conduct the experiment? (Rationale) | | | | |c. |What do you hope to learn about? (Research Problem

Business And Management

910 words - 4 pages that the solution to a particular problem is. A hypothesis is an assumption that we will use the next step, experimentation to determine whether or not the hypothesis is true. An experiment is simply the tests that are done to prove or disprove a particular hypothesis. One of the main ways scientist experiment with their hypotheses is with research studies. If after experimentation research and experiments can’t prove your hypothesis, you

Unit 1

1143 words - 5 pages experienced in each experiment. Finally I will discuss how adaptation is important from an evolutionary perspective. Psychology p.3 There are three experiments I will conduct and they are as fallows. Experiment 1: Rub your index fingers gently over a piece of very coarse sandpaper a few times and rate its coarseness on a scale from 1 (very soft) to 7 (very coarse). After a minute or two, rub the same finger over the paper and again rate its

Similar Documents

Memory Experiment Essay

1603 words - 7 pages Memory experiment In my research experiment, I will be finding out which gender has the better short term memory recall.  I have conducted a Literature Review so that I can review the past experiments on memory. Literature Review The first experiment that I read about was conducted by Liz B, and was conducted from 2004-5.  Her hypothesis was that gender had an effect on short term recall.  This made it non-directional, since she wasn't

Leaky Bucket Experiment Essay

606 words - 3 pages What is the “leaky bucket experiment”? In the words of Okun: "The money must be carried from the rich to the poor in a leaky bucket. Some of it will simply disappear in transit, so the poor will not receive all the money that is taken from the rich." Basically, the leaky bucket experiment was a concept developed by Okun that explains how money in our economy flows from the rich to the poor in an inefficient matter. He uses the term “leaky

Late Nite Lab Essay

387 words - 2 pages 10/23/2015 Late Nite Labs Experiment­Specific Questions Experiment 1: Monosaccharide Test 1.  Fill in the table below with the results from the monosaccharide test experiment, and your conclusions based on those  results. Results Monosaccharide Test Solution Initial Color Color with Benedict's Solution Color After Heating Monosaccharide? glucose solution         water         sucrose

Ethical Considerations Essay

413 words - 2 pages using whilst the experiment is happening. For example, the research method could be a lab experiment, field experiment, correlation, case studies, observations etc. Within this essay, I am going to consider consent, briefing, counselling and the twin study. First of all, i would like to talk about consent. Consent is a key thing when dealing and carrying out studies within psychology. Consent is important because it is a legal procedure and