Stoichiometry Answer Key: Complete Solution TOP RATED
StoichiometryAnswer KeyVocabulary: Avogadro’s number, balanced equation, cancel, coefficient, dimensional analysis, molar mass, mole, molecular mass, stoichiometryPrior Knowledge Questions (Do these BEFORE using the Gizmo.)[Note: The purpose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.]1.A 250 mL glass of orange juice contains 22 grams of sugar. How much sugar is in a two-liter(2,000 mL) bottle of orange juice? 176 grams of sugar2.It requires two sticks of butter to make a batch of 20 cookies. How much butter will it take to make 150 cookies? 15 sticks of butterGizmo Warm-upJust as a cook follows a recipe to decide how much of each ingredient to add, a chemist uses stoichiometry to determine the amounts of substances involved in chemical reactions. The Stoichiometry Gizmo™ allows you to try your hand at figuring out the amounts of reactants and products that take part in a chemical reaction.To begin, check that this equation is shown:Fe2O3 + 3CO 2Fe + 3CO21.Look at the coefficients (such as the “3” in 3CO) in front of each substance in the equation. The coefficients tell you how many molecules or atoms take part in a chemical reaction. In the spaces below, list the number of each molecule or atom in the equation:Fe2O31CO 3Fe 2CO232.In a balanced equation, the same number of each kind of atom is shown on each side of the equation. Calculate the number of iron (Fe), oxygen (O), and carbon atoms (C).ReactantsIron: 2Oxygen: 6Carbon: 3ProductsIron: 2Oxygen:
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- June 16, 2021
- Number of pages
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- Written in
- 2020/2021
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- Exam (elaborations)
- Contains
- Questions & answers
Subjects
- chemistry
- balanced equation
- cancel
- coefficient
- dimensional analysis
- molar mass
- mole
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molecular mass
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stoichiometryanswer keyvocabulary avogadro’s number
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stoichiometryprior knowledge questions