CHEMICAL EQUATIONS
Stoichiometry Made Easy: Stoichiometry Tutorial Part 1 By Ketzbook
Assignment 1. April 16, 2018 Interpreting balanced equations Please show set up of unit conversion for all your calculations. 1. Which of the following always contains the same number of atoms? (1 point) (a) 1 grams of atoms (b) 1 mole of atoms (c) 1 liter of atoms Explain your answer: (5 points) 2. Describe what Stoichiometry means (5 points) 3. Using the example about grilled cheese sandwich; calculate how many slices of bread are required to make 10 grilled sandwiches. (5 points) 4. Using the balanced equation for the synthesis of NH3. Calculate ( i) How many moles of N2 you need to make 20 moles NH3 (5 points) (ii) How many moles of NH3 can you make from 2 moles of H2 (5 points) Monday April 30, 2018 - Watch the video below (by Melissa Maribel)
to learn about how to determine mass relationships of balanced equations. *You already know how to convert mole conversions for balanced equations. Now we want to extend mole conversions to mass conversions in chemical reactions, You will be able to determine mass relationships from a balanced chemical equation. Setup calculations to answer the questions below using the video as a guide. 1. How many grams of Ca(OH)2 are required to react with 100g of H3PO4 ? 2. How many grams of Ca3(PO4)2 are produced from 100g of H3PO4 ?
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Links
AMERICAN CHEMICAL SOCIETY
CHEM MATTERS
Online text books
1. CK12 Foundation (http://www.ck12.org/chemistry/).
2. Boundless chemistry (https://www.boundless.com/chemistry/).
1. Download the printable version of the periodic table (PDF).
2. View an interactive version of the periodic table.
3.The Periodic Table of Videos - University of Nottingham
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