CHM1022 Tutorial 2 – Semester 2‚ 2012 (Chemical Equilibria) 1. The reaction 2 HCl(g) +I2(s) [pic] 2 HI (g) + Cl2(g) has Kc = 1.0 x 10-34 at 25˚C. If a 1.00 L reaction vessel initially contains 0.100 mol of each HCl and solid I2‚ what are the concentrations of HI and Cl2 at equilibrium? 2. Consider the following gas-phase reaction and equilibrium constant at 25 oC: 4 HCl(g) + O2(g) [pic] 2 Cl2(g) + 2 H2O(g) The concentrations of all species were measured at a particular
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Safety and Sanitation in the Kitchen Safety in the kitchen means using precautionary methods in the kitchen to prevent an accident. Most accident in the kitchen is due to carelessness. Safety Procedures: Basic Rules of Kitchen Safety 1. Wear appropriate‚ clean clothing on the lab days. 2. Never cook in loose clothes and keep long hair tied back. 3. Store knives in a wooden block or in a drawer. 4. Keep potholder nearby and use them. 5. Don’t let temperature-sensitive foods sit out
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Chapter 6 - Answer Key to Section Review 1-3 Section Review 1 1. What is the main distinction between ionic and covalent bonding? Answer (A): Ionic bonding involves the electrical attraction between large numbers of anions and cations. Covalent bonding involves the sharing of electron pairs between two atoms. Translation: -Ionic bonding happens between a metal and a non-metal (east coast and west coast) -One atom completely donates its valence electrons to another atom -Metals
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Chemical equilibrium is the point at which the concentrations of reactants and products do not change with time. It would appear as if the reaction has stopped‚ but in fact‚ the rates of the forward and reverse reactions are equal‚ causing the reactants and products to be created at the same rate. This can be expressed mathematically in the form of the equilibrium constant. The following is the general equation for a reversible chemical reaction: aA+bB →cC+dD
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Chemistry: A Molecular Approach (Tro) Chapter 10 Chemical Bonding II: Molecular Shapes‚ Valance Bond Theory‚ and Molecular Orbital Theory 1) Determine the electron geometry (eg) and molecular geometry(mg) of BCl3. A) eg=trigonal planar‚ mg=trigonal planar B) eg=tetrahedral‚ mg=trigonal planar C) eg=tetrahedral‚ mg=trigonal pyramidal D) eg=trigonal planar‚ mg=bent E) eg=trigonal bipyramidal‚ mg= trigonal bipyramidal Answer: A 2) Determine
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r Lab Report 5 Introduction to the Classes of Chemical Reactions Course: Chem. 1151L‚ Tuesday & Thursday June 23‚ 2011 Mr. Nasir Uddin Pre Lab Questions: 1. CaBr2 (aq) + K3PO4 (aq) → CA(PO4)2(S) + KBr (aq) = Ca3(PO4)2 + 6 KBr Double Replacement 2. Li(s) + O2(g) = Li2O(s) =2 Li2O Decomposition 3. CH4 + O2 = CO2 + H2O = CO2 + 2 H2O Combination 4. AgBr(s) = Ag (s) + Br2(l) = 2 Ag + Br2 Combination 5. Mg(s) + H2SO4 (aq) = MgSO4 + H2
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The Importance of Aviation Safety and The Effects of Safety Negligence Michael A. Meza Colorado Technical University Online The Importance of Aviation Safety and The Effects of Safety Negligence Why is safety of such importance throughout the aviation industry? Throughout this discussion I will interpret the significance safety imposes on not only the lives of maintenance personnel but also the lives of many others‚ which may even include you. Air travel has been a high demand
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SAFETY MANAGEMENT 2511BPS ASSIGNMENT BY: ALEX SCHENK (s2802470) ASSIGNMENT QUESTION “Good safety management is more than just a legal and moral requirement. Around the world‚ there is growing recognition that safety management systems can improve the operating performance and profits of a Company as well as its safety defences.” ABSTRACT This essay discusses the main aspects of safety management systems and how they are being utilised in various industries around the world. It begins by defining
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Analysis of a Chemical Reaction Purpose: To observe a chemical reaction and to use qualitative and quantitative evidence to identify this reaction from among four possibilities. Hypothesis: I think the result is going to produce water. I think this is going to happen because there is hydrogen and oxygen inNaHCO3. Materials: -Test tube clamp - 150 mm test tubes (2) - burner - retort stand - clay triangle - iron ring - crucible Procedure: Part A: 1. Add 0.5 g of NaHCO3
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Woods such as south american mahogany and western cedar can be toxic and chemicals can be inhaled. Saw dust can be hazradous to your lungs. 6. What is a Material Safety Data Sheet? How should you use it? 127 Narne Date _ Class -------------------- 7. If you are unsure how to dispose of a hazardous chemical‚ how can you find out? 8. Describe appropriate dress for the woodworking workshop. 9. When should you wear safety glasses or goggles? 10. Describe the dangers associated with noise levels
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