learning process • studying continuously and independently is the key to success – active memorization – study groups (!!!) – ask questions Introduction 1.Introduction: Matter and Measurement 2.Atoms‚ Molecules‚ and Ions 3.Stoichiometry 4.Aqueous Reactions and Solution Stoichiometry 5.Thermodynamic 6.Electronic Structure of Atoms 7.Periodic Properties of the Elements 8.Basic Concepts of Chemical Bondings 9.Molecular Geometry and Bonding Theories 10. Gases 11.Intermolecular Forces Basics • • • • Exponents
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|White precipitate | |AgNO3 (aq) with NaI (aq) |Yellow precipitate | |AgNO3 (aq) with Na3PO4 (aq) |Yellow precipitate | |AgNO3 (aq) with Na2S2O3 (aq) |Colorless solution | Formulas
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Table salt is used primarily in seasoning foods. To be absolutely sure of the identity of the unknown‚ the unknown was mixed with another reactant that was also soluble in water. For NaCl the following reactants were mixed‚ 3NaCl(aq) + K3PO4(aq) → Na3PO4(aq) + 3KCl(aq). In this reaction‚ the products are both soluble in water‚ to there was no precipitate left after the
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reactions will occur? A. Fe + 2Ag+ ( Fe+2 + 2Ag B. Fe + Zn+2(Fe+2 + Zn C. 3Ag + Fe+3( 3Ag+ + Fe D. Zn+2 + 2Ag( Zn + 2Ag+ _____9. Based on the solubility rules‚ which of the following is insoluble? A. CuSO4 B. CuS C. CuCl2
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one mark‚ some questions will have a total value of two marks. Note that there are MORE terms provided than you need‚ so read over the list carefully and choose the terms you want to use. The same term may be used more than once in this section. Stoichiometry (4 marks) 1. The calculated amount of product formed during a reaction is called the ____________________ yield. Theoretical 2. For a given chemical reaction‚ the actual yield is always ____________________ than the theoretical yield. Less / smaller
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DEVELOPMENT OF THE PERIODIC TABLE Although Dmitri Mendeleev is often considered the "father" of the periodic table‚ the work of many scientists contributed to its present form. Elements such as gold‚ silver‚ tin‚ copper‚ lead and mercury have been known since earliest times. In 1649 the first scientific discovery of an element occurred. Hennig Brand‚ a German chemist‚ treated urine to a series of processes that resulted in the production of the element phosphorus. Over the next 200 years
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________________________________________________________________________________ ANALYSIS OF FOOD AND NATURAL PRODUCTS LABORATORY EXERCISE Determination of total nitrogen in food and crude protein calculation (Kjeldahl method) ___________________________________________________________ Responsible person: Assoc.Prof. Ing.Kateřina Riddellová‚ Ph.D. CONTENT ______________________________________________________________________________________________________________________ Required
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Experiment 1: Calorimetry INTRODUCTION In the calibration of the calorimeter‚ the net ionic equation used is H+(aq) + OH-(aq) H2O(l). The reaction released heat and is said to be exothermic. HCl is the limiting reactant of the reaction and o.oo5 moles of it was used. The heat generated by the reaction is 55.8 kJ. The sign of T of the reaction used for calibration is opposite to that of H. In the determination of heats of reaction‚ the reaction of 15 mL 1 M CuSO4 + 0.05 g Zn produced a
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Titration KMnO4+ FeSO4 12/2/2013 At Alsadek Scientific Association Prepared by: Zainab Alfakih & Jinan Krayem Teacher: Dr. Hiba Nassar Contents Introduction 2 Objectives 3 Theoretical Study 3 Definitions 3 Derivations 3 Equipment 4 Setup 5 Procedures 5 Results 6 Discussion 7 Conclusion 8 References 9 I. Introduction: Oxidation Reduction reactions are chemical reactions in which substances undergo changes in oxidation state. Oxidation is defined as the
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Chemistry 261 Practical Report Practical 2 Thermos Thurman 211526893 PRACTICAL 2: Preparation of sodium hexanitrocobaltate (III) Date: 12 March 2014 INTRODUCTION Sodium hexanitrocobaltate (III) is a coordination complex which has the formula Na3[Co(NO2)6]. This compound is yellow in colour. It consists of a central Co3+ ion surrounded by six nitro ligands [1]. This compound is used as a qualitative test for potassium and ammonium ions (so long as certain
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