Chemical Reaction Lab
Introduction When a chemical reaction occurs anywhere in the universe, it needs energy. The human body is no exception. For some reactions, the energy required to start the reaction is Enzymes are special proteins designed to assist in the breaking down of macromolecules. They do so by holding the macromolecule in place at the active site, therefore lowering the amount of energy it takes to start the chemical reaction. There are different enzymes for each macromolecule; Pectinase and Cellulase are both examples of enzymes, and were the enzymes tested in this lab. Pectinase is used to break down pectin, a polysaccharide that is often found in the cell walls of leaves, roots and fruits. Pectinase is used to extract juice from fruit purées.
Grignard Reaction Lab
397 Words | 2 PagesGrignard is a reaction that is crucial to forming the new carbon-carbon bond. This is a two-part lab that teaches new techniques; the purpose of this lab is to introduce realistic organic synthesis and apply acid workup to produce triphenylmethanol. A Grignard reaction is characterized by the addition of a magnesium halide (an organomagnesium halide) to an aldehyde or a ketone in order to form a secondary or tertiary alcohol. These reactions are helpful because they serve as a crucial tool in performing important carbon-carbon bond-forming reactions (Arizona State University, 2018). This experiment aimed to observe the mechanisms of a Grignard reply to synthesize triphenylmethanol from benzophenone using phenylmagnesium bromide as the Grignard reagent.
Chemical Change Lab Report
432 Words | 2 PagesFor this lab the knowledge to tell the difference between a chemical and physical changes was needed. To tell this the knowledge of the five signs of a chemical change was needed. These five signs are color change, odor change, production of bubbles/gas, production of heat/light, and the production of precipitate. Also prior to the lab one question was provided that needed to be answered. This question was what chemical must be present for a color change.
Sodium Chloride Lab
896 Words | 4 PagesThe purpose of this report is determine if sodium chloride is a viable option as a deicer on winter roads. To determine this, one must compare a multitude of factors. In this lab, the freezing point depression of water, enthalpy of dissolution, cost, and environmental impact will be discussed. A large factor in how effective a substance is as a deicer is it’s ability to decrease the freezing point of water. If the freezing point of water can be lowered, the outside temperature must be much colder to reach this new freezing point, resulting in less ice on the roads.
Peroxidase Chemical Reaction Lab
740 Words | 3 PagesTitle: Enzymes Abstract: Enzymes can catalyze chemical reactions by speeding up the chemicals activation energy. Temperature and pH are just two of the factors that affects enzymes and their involvement with chemicals and the way they function. Throughout this experiment, we conducted a study on peroxidase, which is an enzyme. The following information consist of the recordings of when it was exposed to four different pH levels to come up with an optimum pH and IRV at the end. Introduction: Enzymes are proteins that are used in reactions in living organisms.
Lab Report Chemistry Lab
728 Words | 3 PagesThe lab started off by measuring critical materials for the lab: the mass of an an empty 100 mL beaker, mass of beaker and copper chloride together(52.30 g), and the mass of three iron nails(2.73 g). The goal of this experiment is to determine the number of moles of copper and iron that would be produced in the reaction of iron and copper(II) chloride, the ratio of moles of iron to moles of copper, and the percent yield of copper produced. 2.00 grams of copper(II) chloride was added in the beaker to mix with 15 mL of distilled water. Then, three dry nails are placed in the copper(II) chloride solution for approximately 25 minutes. The three nails have to be scraped clean by sandpaper to make the surface of the nail shiny; if the nails are not clean, then some unknown substances might accidentally mix into the reaction and cause variations of the result.
Hydrochlorimetry Lab Essay
1866 Words | 8 PagesThe purpose of this lab is to observe the reaction between hydrochloric acid and magnesium metal. When the substances are reacted over water, the products produced are a salt in aqueous solution and a gas. While the salt remains in the water as part of a solution, the gas produced will float to the top. Though water vapor pressure will affect the pressure of the gas in the eudiometer, it is possible to apply Dalton’s law of partial pursues to find the dry pressure of the gas. When the dry pressure is determined, the volume of the gas at STP can then be determined and what the experimental volume of one mole of the gas would be at STP.
Catabolic Reaction Experiment
1060 Words | 5 PagesIntroduction: What are enzymes? Chemical reactions that take place in living cells are known as metabolic reactions. There are two types of reactions: • Anabolic Reaction (Constructive) • Catabolic Reaction (Destructive)
Enzyme Lab
901 Words | 4 PagesIntroduction: Enzymes are needed for survival in any living system and they control cellular reactions. Enzymes speed up chemical reactions by lowering the energy needed for molecules to begin reacting with each other. They do this by forming an enzyme-substrate complex that reduces energy that is required for a specific reaction to occur. Enzymes determine their functions by their shape and structure. Enzymes are made of amino acids, it 's made of anywhere from a hundred to a million amino acids, each they are bonded to other chemical bonds.
Chemical Reactions Lab Report
1029 Words | 5 PagesIntro: Chemical reactions are the foundation for all organisms to exist. Paragraph 1: Endergonic Anabolic Reactions Building Consumes energy to build complicated molecules from simpler ones Uphill Photosynthesis Uses water and carbon dioxide to create sugar and oxygen Protein synthesis from amino acids Dehydration reaction Monomers are covalently bonded to each other through the loss of water Bonds are created which means energy is used Endergonic Exergonic Breaking Release energy by breaking down complex molecules to simpler molecules
Enzymatic Reaction Lab
384 Words | 2 PagesCuvette 8 contains hydrochloric acid solution and is used as the zero for cuvette 9. Cuvette 10 contains Sodium hydroxide solution and acts as the zero for cuvette 11.Cuvette 2 is used as the control in each variable test. Cuvettes 2, 3, and 4 tested the variable of enzyme concentration. They were all kept at 23 degrees Celsius and a pH of 7. Cuvette 2 contained 1 mL of catalase, resulting in an absorption rate of .001 Au.
Acid Oxidation Lab
1635 Words | 7 PagesThe lab testing consists of investigating the rate of oxidation of Acid Sulfate Soils with variant temperatures. Since the transformation from PASS to AASS involves a significant pH drop to approximately one, rate of reaction and time was measured until the pH levels in the reaction even out at a low pH of approximately one. Appendix A & B demonstrate the oxidation reaction trials for each temperature over time, with pH levels recorded once every second. The time when the data stopped recording was determined when either the reaction had finished, or the time exceeds twelve minutes. This time limit was set due to a constricted time allowance of experiments.
Enzyme Fast Lab
485 Words | 2 PagesExplain why the enzyme is still active even though the liver cells from which you obtained the enzyme were no longer living? Because it is still a
Mixture Lab
1066 Words | 5 PagesDuring the Mixed Substances lab the objective was to see how many properties of individual substances compare with properties of mixed substances. From here on the words that would help you along the way of the lab for your research is mixture, homogeneous mixture, and last but least heterogeneous mixture. The hypothesis or guess on what would happen when the water is mixed with the cornstarch, is the cornstarch and water will mix and form a new liquid/solid. However, the Investigating Mixtures lab objective was to observe that not all liquids behave the same way when mixed with other liquids. Moreover the hypothesis of this experiment was that the vegetable oil and colored will separate because the vegetable oil will go to the top and the
Alka Seltzer Reaction Lab
2605 Words | 11 PagesParagraph 1 The objective of the experiment is to test; how will water temperature affect the rate of reaction of an alka-seltzer tablet? The dependent variable of the experiment is the dissolving time. When an alka-seltzer tablet starts to fizz it begins to dissolve, due to the citric acid and sodium bicarbonate the tablet contains (Clark, “Why does Alka-Seltzer fizz?).
B-Galactosidase Lab Report
1764 Words | 8 PagesEnzymes speed up chemical reactions enabling more products to be formed within a shorter span of time. Enzymes are fragile and easily disrupted by heat or other mild treatment. Studying the effect of temperature and substrate concentration on enzyme concentration allows better understanding of optimum conditions which enzymes can function. An example of an enzyme catalyzed reaction is enzymatic hydrolysis of an artificial substrate, o-Nitrophenylgalactoside (ONPG) used in place of lactose. Upon hydrolysis by B-galactosidase, a yellow colored compound o-Nitrophenol (ONP) is formed.
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