Gases Chapter 5 1 Elements that exist as gases at 250C and 1 atmosphere 2 3 Physical Characteristics of Gases • • • • Gases assume the volume and shape of their containers. Gases are the most compressible state of matter. Gases will mix evenly and completely when confined to the same container. Gases have much lower densities than liquids and solids. NO2 gas 4 Force Pressure = Area (force = mass x acceleration) Units of Pressure 1 pascal (Pa) = 1 N/m2 1 atm = 760
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Golovatenko‚ gr.503 An Ideal Teacher “I never teach my pupils. I only attempt to provide the conditions in which they can learn” Albert Einstein “Good teaching is more a giving of right questions than a giving of right answers” Josef Albers Plan: To make an introduction (state the problem): What makes an ideal teacher as a teacher`s diploma is not a guarantee of it? Features which create an ideal image: The ideal teacher must be competent in his subject and also be “keen on it” The ideal teacher must be
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What does it mean to have good ideals? What makes certain ideals better than others? Seeing as we all have them‚ and being that most have different ideals than others‚ what makes certain ideals considered better than others. In this essay i will be discussing my ideals and how they compare to the man by the name of Chris McCandless. I will be comparing to see if i share any of the same ideals with the young man. By the end of this i will hope to have found out some new things about myself. And maybe
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Shakespeare indicates features that make up an ideal man. Through various character’s representations and actions the reader can to discern Shakespeare’s Ideal Man. By defining his Ideal man and its opposites‚ Shakespeare introduces the common theme of masculinity. Firstly‚ Macbeth symbolizes the anti-ideal man‚ in other words the anti-hero‚ of the story. Through his mistakes and flaws the reader tends to understand Macbeth’s contrary: the Ideal Man. Even if at the beginning Macbeth is presented
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constant as 8.31 J/mol/K ( ) and to calculate the molar mass of butane. Theory: The ideal gas law‚ PV=nRT‚ is used to model an ideal gas‚ which is a gas with no intermolecular forces other than those of collisions‚ perfectly spherical and elastic particles. Although an ideal gas is a theoretical model and so cannot exist in practice‚ most gases behave fairly similarly to an ideal gas. Gases behave more like an ideal gas when they are at a higher temperature and lower pressure‚ as the potential energy
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NOT FOR ELECTRONIC STUDENT ACCESS ONLY FOR CLASSROOM USE!! Unit 9: Stoichiometry Practice 1. Differentiate between the significance of the coefficients in a balanced chemical equation and the significance of the subscripts in a chemical formula. · Coefficients show the correct proportions of atoms and molecules in a chemical reaction. They are normal sized numbers placed at the beginning of the chemical formulas in a chemical reaction during the process of balancing. They tell how many of an entire
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Title : The Ideal Husband Thesis statement : There are few characteristics of an ideal husband of mine such as loving‚ great personality‚ good looking and career man. A man who is a woman married to is called as husband. I believed that majority of women in this world wishing for an ideal husband to be their life partner‚ so do I. Unfortunately‚ finding those ‘quality man’ these days is not as easy as ABC. Why do I wish for an ideal husband? It is because good qualities in a husband can
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My Ideal Job I’m sure everyone has heard the word “ideal” being mentioned in the same sentence with “job”. Perhaps by a friend trying to find one‚ a parent giving a needless lecture‚ a business advertising their vacant spaces for employment‚ or perhaps even in your own thoughts and wonderings‚ Well‚ however so the source‚ the effect is all the same – leaving us with a simple question which so curiously queries us‚ “What exactly is this ‘ideal job’?” The ideal job is a career path where you
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Experiment 3: Evaluation of Gas Constant Purpose: The purpose of this lab is to demonstrate the ideal gas law under ordinary conditions. In this lab‚ the variables in the ideal gas law are known or can be found aside from the constant R. Thus‚ the R values can be found and relatively determine the relevancy of the ideal gas law to the lab conditions. The ideal gas law was tested using the reaction: Mg (s) + 2HCl2 (aq) H2 (g) Procedure: 1. Ribbons of magnesium (5) were cut to the approximate
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theoretical number of moles of hydrogen gas may be calculated using stoichiometry and the balanced chemical equation. The theoretical volume of hydrogen gas may then be determined from the previously determined number of moles of gas by rearranging the ideal gas law to solve for volume at the experimental conditions of temperature and pressure. A comparison to the experimental volume of hydrogen gas obtained from the experiment is then made. The amount and percent errors will demonstrate the experimenter’s
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