Trying to find a good, quantitative procedure that students can use for exploring photosynthesis is a challenge. The standard procedures such as counting oxygen bubbles generated by an elodea stem tend to not be “student” proof or reliable. This is a particular problem if your …
The Development of the Periodic Table Although Dimmit Mendel is often considered the ‘father’ of the periodic table, the work of many scientists contributed to its present form. Between 1817-1829, Johann Doberman began to group elements with similar properties in to groups of three or …
Materials and Apparatus: Olive oil, 95% ethanol, beaker, 50% sodium hydroxide solution, Boucher alter, hot plate, salt solution, magnetic stirrer, filter funnel, glass rod, filter paper, weighing balance, watch glass and measuring cylinder. From the diagram above, we can clearly see that the ionic (highly …
Assignment Define the various regimes of cold working, warm working, and hot working in terms of the melting point of the material being formed. Indicate some of the advantages of cold working relative to warm and hot working. What are some of the negative aspects …
School of Nursing, Midwifery and Interprofessional Studies. With reference to acid-base balance explore the role of the respiratory system in maintaining blood pH? ‘We live and die at the cellular level’ (Reid, 2011). Homeostasis is crucial for normal cellular function. Acid-base homeostasis is the part …
Land Water Pollution by FertilizersTable of ContentIntroductionSituationProblemSolutionDecrease of the Procedure ChemicalsEvaluationOrganic FertilizersInorganic FertilizersDecisionMentionsIntroductionThis essay is based on the subject “Ground Water Pollution by Fertilizers” . Furthermore, it is further divided into four different parts that contains state of affairs, job, solution and rating. The initial …
Results In this experiment we used paper chromatography to determine the amount of chlorophyll a, chlorophyll b, xanthophyll, and beta-carotene in a tube of blended leaf extract. We recorded our findings on the table labeled. Shows the transmittance at each wavelength on a table from …
As our civilization grows, there is also a growing passion for knowledge of the past. Archaeology is fast becoming one of the popular sciences. Most archeological finds are composed of shreds of pottery or ceramics. As archeology and modern science progress many dating techniques are …
In the early hours of August 17, 1975, a tragic disaster occurred on the Gulf Oil refinery in Philadelphia, Pennsylvania. This horrific disaster took the lives of eight firefighters, and potentially could have taken more lives if it wasn’t for the help of many surrounding …
Experimental: Theoretical: Discussion [6] The experimental findings obtained are largely consistent with theory. The activation energy obtained in Part C, 138. 6 k/mol is not too far below the theoretical activation energy of 148. 526 k/mol[6], while Part A confirms the theory that k is …
Abstract The industrial gas turbine is a key part of modern electricity generation. In 1998 15% of electric power was produced by gas turbines. Due to their efficiency, compactness, reliability and relatively low capital cost 81% of new electric power demand will be met by …
Lab Report Format for Separating the Components of “Panacetin” (2) and Recrystallization and Melting Point Measurement: Identifying the Components of “Panacetin” (3). Lab Notebook Title and Date Objective: Explain the purpose of the experiment and how you plan to accomplish it. Technique: Show the use …
Experiment Enthalpy And Entropy Of Zinc With Copper Sulfate The CCLI Initiative Computers in Chemistry Laboratory Instruction Learning Objectives The learning objectives of this experiment are to determine changes in enthalpy and entropy of the reaction of zinc with copper sulfate using two methods: electrochemistry …
Proteomics is a study of the proteome of an organism. The last few decades have seen a rapid progress in the development of this field. This paper attempts to compare and contrast the way in which proteomics studies are performed today as opposed to those …
Thomas Graham studied the behavior of the diffusion of gases of unequal densities when placed in contact with each other, using air as his control. He wanted to numerically prove how the diffusion of the gas volumes was inversely proportional to the value of the …
According to statistics of recorded crimes in California, seventy five percent are women who are killed by an intimate partner. Moreover, more than eighty percent was being abused by a spouse or a boyfriend (CPEDV, 2007). Domestic or intimate partner violence has been a major …
Once the aspirin is prepared, it is isolated from the reaction solution and then it is purified. The aspirin is insoluble in cold water, and it is isolated by filtering the chilled reaction solution. Purification is essential to remove any unreacted salicylic acid and acetic …
Diffusion And Osmosis Abstract In this Diffusion and Osmosis lab a total of three experiments were performed. For experiment 5. 1 we investigate diffusion through a selectively permeable membrane and the many factors that influence the rates of diffusion. In experiment 5. 2 we investigate …
Synthesis of Aspirin and Oil of Wintergreen INTRODUCTION: Synthesis and use of organic compounds is an extremely important area of modern chemistry. Approximately half of all chemists work with organic chemicals. In everyday life, many if not most of the chemicals you come in contact …
Rate of photosynthesis: limiting factors Limiting factors The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature. In any given situation any one of these may become a limiting factor, in other words the factors that directly affects the rate …
In this lab, caproic acid was synthesized in a multi-step process that involved the synthesis of three intermediates – diethyl n-butylmalonate, potassium n-butylmalonate, and n-butyl malonic acid respectively. An IR was used to characterize the starting material, n-bromobutane, and the first intermediate, diethyl n-butylmalonate; while …
The discussion tap water vs. bottled water has very strong opinionated sides. One side believes that tap water is the better choice and is better for the environment and health of the general populace, while the other side of the populace argues that bottled water …
INTRODUCTION: WHAT IS HARDNESS OF WATER: It is when water passes through or over deposit such as limestone; the level of Ca²⁻and Mg²⁺and HCO₃ ions present in the water can greatly increase and cause the water to be classified as hard water. This term results …
The acid-catalyzed dehydration of secondary and tertiary alcohols involves non-isolable carbocation intermediaries. In the first step of the of the reaction mechanism below, a phosphoric acid catalyst adds a proton to the oxygen atom of the alcohol to form an oxonium ion. The OH is …
Need And Scope Of The Experiment In almost all soil tests natural moisture content of the soil is to be determined. The knowledge of the natural moisture content is essential in all studies of soil mechanics. To sight a few, natural moisture content is used …
Blood is a necessary component of the majority of living organisms (all vertebrates and some invertebrates); it carries vital nutrients, oxygen and proteins to body tissues and carries away waste products. Blood, although most commonly red, can also be found in such colours as green, …
Table 1: Data Collection Table – Contains all of the primary data directly obtained from the lab. Indicator | Initial volume of NaOH in burette (ml) ±0. 05| Final Volume of NaOH in burette (ml) ±0. 05| Final – initial Burette Reading (Volume of NaOH …
UNSTEADY STATE HEAT TRANSFER Heat transfer processes are prominent in engineering due to several applications in industry and environment. Heat transfer is central to the performance of propulsion systems, design of conventional space and water heating systems, cooling of electronic equipment, and many manufacturing processes …
It is common knowledge that petroleum and petroleum gas (LPG) are good sources of energy. Imagine that petroleum did not exist. This simply means that all the technology that has been developed around petroleum will not be there. To say the least, development in the …
I am going to investigate osmosis when potato is placed in different concentrations of sucrose. I am aiming to witness osmosis in 5 different concentrations of sucrose. I will use 5 varying concentrations so that I have a wider spread to compare the results, and …
Conjugation
The word "conjugation" is derived from a Latin word that means "to link together". In organic chemistry terms, it is used to describe the situation that occurs when π systems (e.g. double bonds) are "linked together". An "isolated" π (pi) system exists only between a single pair of adjacent atoms (e.g. C=C)
Kinetic energy
Kinetic energy is the energy associated with objects in motion. Potential energy is the type of energy associated with an object's potential to do work. Chemical energy is the type of energy released from the breakdown of chemical bonds and can be harnessed for metabolic processes.
Physics
Chemical physics is concerned with the application of the concepts and theories of physics to the analysis of chemical systems and their physical behaviour. While also at the interface between physics and chemistry, it is distinct from physical chemistry.
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