4.1 Mass Relationships in Chemical Reactions: Stoichiometry
Click on the title of a resource to view it. To save screen space, only the first 3 resources are shown. You can display more resources by scrolling down and clicking on “View all xx results”.
For the textbook, chapter, and section you specified we found
Stoichiometry The Stoichiometry group contains three groups: Exploding Soap Bubbles: Hydrogen + Oxygen; Acid-Base Titrations and Animation; and Redox Titration and Animation.
Stoichiometry
Gas Stoichiometry Gas is generated from one mole of liquid of solid and the volume is measured using a gas collection system.
Stoichiometry : StoicNeeds (10 Variations) You have a known mass of a compound X and react it to form compound Y. What is the minimum information you need to find the mass of Y produced?
Stoichiometry
Stoichiometry : LimitingReagent (8 Variations) The synthesis of urea by Frederich W??hler in 1825 began the decline of the idea that "organic" chemicals could only be made by living organisms as part of their biological processes.
AgOCN(aq) + NH4Cl(aq)AgCl(s) + NH2CONH2(aq)
If you perform this reaction and collect the following table of data, in which trial(s) is AgOCN clearly the limiting reactant?
Trial
AgOCN used
NH4Cl
AgCl produced
1
20.4 mL
5.3 mL
2.4 g
2
20.3 mL
10.4 mL
4.3 g
3
20.6 mL
15.4 mL
6.2 g
4
20.5 mL
20.6 mL
8.2 g
5
20.4 mL
25.2 mL
10.2 g
6
20.3 mL
30.4 mL
10.3 g
The mL of AgOCN and NH4Cl are the initial amounts used, the mass of AgCl is how much was recovered from the reaction. (Hint: You do not need to do any calculations to answer this question.)
Ionic BlocksRichard S. Sevcik, Rex Gamble, Elizabet Martinez, Linda D. Schultz, and Susan V. Alexander "Ionic Blocks" is a teaching tool designed to help middle school students visualize the concepts of ions, ionic compounds, and stoichiometry. It can also assist high school students in reviewing their subject mastery. Sevcik, Richard S.; Gamble, Rex; Martinez, Elizabet; Schultz, Linda D.; Alexander, Susan V. J. Chem. Educ.2008, 85, 1631.
Ionic Bonding |
Nomenclature / Units / Symbols |
Nonmajor Courses |
Stoichiometry
A Dramatic Classroom Demonstration of Limiting Reagent Using the Vinegar and Sodium Hydrogen Carbonate ReactionRomklao Artdej and Tienthong Thongpanchang This demonstration, appropriate for high school chemistry level and recommended for a large classroom presentation, is designed to illustrate the concept of limiting reagent via a series of experiments in which increasing amounts of sodium bicarbonate are added to a fixed amount of vinegar is fixed until the volume of carbon dioxide generated remains constant. Artdej, Romklao; Thongpanchang, Tienthong. J. Chem. Educ.2008, 85, 1382.
Acids / Bases |
Food Science |
Gases |
Stoichiometry
Oven versus Bunsen Burner When Heating Copper(II) Chloride DihydrateMichael C. Wirtz In "greening up" the classical stoichiometry experiment where students determine the formula of copper(II) chloride dihydrate, it is critical that teachers and instructors use a 110°C oven rather than a Bunsen burner. Copper(II) chloride dihydrate decomposes at temperatures above 300°C, releasing chlorine gas. Wirtz, Michael C. J. Chem. Educ.2008, 85, 1345.
Equations and Mass RelationshipsEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
AgCl(s) + NH2CONH2(aq) 
