Chapter 4 — Intro—1 1 CHAPTER 3 Topic Scopes: Stoichiometry and Solution Concentration • Molarity‚ molality‚ parts per million & percentage (w/w‚ w/v and v/v) • Stoichiometry calculation • Limiting reactant • Theoretical yield‚ actual yield and percentage yield 1 2 Mole Concept No. of Moles = Molarity (M) • Molarity (molar concentration) is the number of moles of a solute that is contained in 1 liter of solution Mass (g) molar mass (g/mol) No. of Moles = Molarity (mol/L) volume (L) Molarity
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Accord. The Supply Chain Management Common Accord has been developed by the sector for the sector‚ and by using the current good practice included in this guide as a sector standard. AELP is grateful to the Learning and Skills Improvement Service (LSIS) for supporting the production of this guide‚ which I hope you find useful as you strive to continually improve the
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2 Discuss the arguments for and against mixed schools STEP 1: Carrying Out a CLD Analysis C- Content (subject) L- Limiting Words D- Direction Words Content: Mixed schools Limiting Words: Limiting subject 1 – Arguments for Limiting subject 2 – Arguments against Direction Word: Discuss Step 3: “What are the advantages and disadvantages
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Use coefficients from a balanced equation as a mole ratio in dimensional analysis calculations. Solve a variety of stoichiometry calculations involving moles and mass. Use volume and density in stoichiometry calculations (honors). Lesson 4.07: Limiting Reactant Identify when a problem
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The Synthesis of Organic Aspirin ABSTRACT: The purpose of this experiment was to find out how a reaction undergoes for a globally known painkiller called aspirin‚ and to become familiar with achieving successful yields. Aspirin is synthesized from salicylic acid and acetic anhydride. Those two chemicals are mixed together along with sulfuric acid to form a crude solid. Filtration is used separate the impurities from the crude aspirin. To get purified aspirin‚ the precipitate was heated until all
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of one of the reactants (usually the cheaper one). • Limiting Reactant – reactant that will be totally consumed. • Excess Reactant – will not be totally consumed; will have left over. • The maximum amount of product (theoretical yield) that can be obtained in a chemical reaction is based on the limiting reactant. – Need to fully “GRASP” Example 3 • Consider the reaction: 2Sb (s) + 3I2 (s) → 2SbI3 (s) Determine the limiting reactant and the theoretical yield (in grams) when 1.20
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rocket the highest/longest distance in cm. Also to experimentally determine the % NaHCO3 in the tablet using the information from the highest/longest distance. Calculate the error and % error of NaHCO3 in an Alka-Seltzer tablet and to determine the limiting reagent for the highest/longest distance traveled. Alka-Seltzer tablets were first obtained. Vinegar‚ a 250-mL beaker‚ and a 50-mL (or 10-mL) graduated cylinder was given from the instructor. After the experiment‚ a graph of percent by mass of the
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Experiment 4: Conductivity of electrolyte solutions (Dated: October 29‚ 2009) I. INTRODUCTION Pure water does not conduct electricity‚ but any solvated ionic species would contribute to conduction of electricity. An ionically conducting solution is called an electrolyte solution and the compound‚ which produces the ions as it dissolves‚ is called an electrolyte. A strong electrolyte is a compound that will completely dissociate into ions in water. Correspondingly‚ a weak electrolyte dissolves
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SHORT-RUN TACTICAL DECISIONS The organizations strive to earn short-run profits. In making short-run decisions‚ not all cost and revenue data is relevant. The cost data relevant for decision-making is referred to as relevant costs and that which is not useful for decision-making is non-relevant costs. On the revenue side‚ the only relevant revenue is the incremental & differential revenue. Relevant and Non-Relevant Costs: 1. Future Costs and Sunk Costs (IR): A future cost is that cost yet
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References: Gerken and Pekar. (2009). Biology‚ It’s All About Life. Life on Earth: LSIS 201 Lab Manual. Green‚ J.‚ and Trett‚ M.W. (1989). The Fate and Effects of Oil in Freshwater. New York‚ NY: Elsevier Applied Science.
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