reaction is not used to titrate the CaCO3 because it is very slow when the reaction is close to the endpoint. Instead adding an excess of acid to dissolve all of the CaCO3 and then titrating the remaining H3O+ with NaOH solution can achieve the determination of the amount of acid‚ which has not reacted with the calcium carbonate. There are differences between amount of the acid (HCl) added and the amount left over after the reaction is equal to the amount used by the CaCO3. The reaction used to determine
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Experiment 5: Shifting Equilibrium A solution is in equilibrium when the rate of forward reaction and the rate of reverse reaction are equal. This equilibrium may be disturbed when the concentration of the reactants‚ the concentration of the products or the temperature is changed. If the process involves gases‚ a change in pressure can also affect the position of equilibrium. The concept behind this is Le Chatelier ’s Principle which states that when a system is disturbed through application
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Self-Determination Theory – How Do You Feel? PSYC3520 - Intro to Social Psychology Social Psychological Theory April‚ 2014 What is the Self-Determination Theory? “Self-determination theory (SDT) is a macro theory of human motivation and personality‚ concerning people ’s inherent growth tendencies and their innate psychological needs.” (Deci & Ryan‚ n.d.) In short‚ it is our motivation in the choices we make that exclude outside influences. This theory of motivation
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Iron (Fe) Deficiency i*n *Cyanobacteria Fe in cyanobacteria serves as an essential redox component important to diverse metabolic pathways. Fe-rich systems in cyanobacteria such as the photosynthetic apparatus and the respiratory electron transport system are dependent on Fe supply (Raven et al.‚ 1999). Other important cellular processes such as nitrogen assimilation (Raven‚ 1988)‚ ribonucleotide synthesis‚ chlorophyll synthesis and oxygen radical detoxification are also Fe dependent. Prokaryotes
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“Life in the Iron Mills” by Rebecca Harding Davis is a story that provokes feminism as defined by Lerner within its characters. It is easiest to see this correspondence when you break Lerner’s definition down into its integral points. Namely‚ “the awareness of women that they belong to a subordinate group”‚ one that is deemed so by society‚ that women “must join with other women to remedy these wrongs”‚ and‚ finally‚ that women should “provide an alternate vision of societal organization” that better
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Determination: the ability to strive for and accomplish a set goal. Determination is one of the most important trait anyone can have. It helps you succeed and overcome any boundaries thrown your way. Determination is so significant because without it many feats wouldn’t have been accomplished. It can help people succeed no matter what obstacles they have to face. First‚ if no African-American had revolted against the status quo and been determined to end all the injustices that African Americans
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CHEM 101L GENERAL CHEMISTRY LAB FALL 2012‚ Friday 1:00 PM-3:50 PM Professor: Dr. Rostislav Bukasov Office: 7107 Office hours: Monday 5:00-6:00 PM; Tuesday 9.00-10.00 AM; Wednesday 11:00 AM–12:00 PM; Thursday 4.00-5.00 PM; Friday 10.00-11.00 AM Phone: 7-7172-706665 E-mail: rostislav.bukasov@nu.edu.kz Teaching Assistant: Zhanar Kassenova E-mail: zhanar.kassenova@nu.edu.kz Office : 8527 Office hours: Tuesday: 11.00 - 12.00 pm; Thursday: 9.00 am - 10.00 am Course Overview Chemistry
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EXPERIMENT 201: WORK‚ ENERGY AND POWER John Michael A. Ramos‚ Phy11l/A5 Abstract The essential conditions to be satisfied for work to be done are: Some force must act on the object. The point of application of force must move in the direction of force. W = F x s. SI unit of work is joule. Energy is the capacity to do work. The two types of mechanical energy are kinetic energy and potential energy. Kinetic energy is the energy possessed by an object by virtue of its motion. Potential energy is
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Iron Jawed Angels Have you ever wondered what being a woman of the 19th century was really like? Hillary Swank portrays it beautifully in this drama/romance that should be added to our High School library for all young women to see. Swank portrays a young defiant‚ Alice Paul‚ a political activist in Iron Jawed Angels‚ in which the director‚ Katja von Garni re-creates the history of the beginning of an end to women’s suffrage. The heart warming‚ true story of Alice Paul and Lucy Barnes is riveting
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Medicinal Plants Introduction Introduction “In All things there is a poison‚ and there is nothing without a poison. It depends on only upon the dose whether a poison is a poison or not”---------Paracelsus (1493?-1541‚ Switzerland) Chinese saying “Shi Yao San Fei Du” means “Any drugs have toxic effects”. Introduction: Why Study Medicinal Plants Medicinal plants and religions • Medicinal plants have played an essential role in the development of human culture‚ for example religions
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