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Stoichiometric Calculations

Stoichiometric Calculations. Objectives: 6.0 Solve stoichiometric problems involving relationships among the number of particles, moles, and masses of reactants and products in a chemical reaction 6.3 Identifying the nomenclature of ionic compounds, binary compounds, and acids

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Stoichiometric Calculations

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  1. Stoichiometric Calculations Objectives: 6.0 Solve stoichiometric problems involving relationships among the number of particles, moles, and masses of reactants and products in a chemical reaction 6.3 Identifying the nomenclature of ionic compounds, binary compounds, and acids 6.4 Classifying chemical reactions as composition, decomposition, single replacement, or double replacement

  2. Mole-to-Mole Conversions • 2K(s) + 2H2O(l) → 2KOH(aq) + H2(g) • What is the mole ratio of potassium (K) to hydrogen (H2)? • How many moles of hydrogen will be produced in this reaction with 0.0400 moles of potassium? • 0.0400 mol K x 1 mol H2/2 mol K = ????

  3. Mole-to-Mass Conversions • 1 step further: • In the previous example, how many GRAMS of hydrogen will be produced? • 0.0400 mol K x 1 mol H2/2 mol K x 2.0158 g H2/mol H2 = ???

  4. Mass-to-Mass Conversions • And 1 more step: • Using the same equation, if you have 73.8g of potassium, how may grams of hydrogen will be produced? • 73.8g K x mol K/22.990g K x 1 mol H2/2 mol K x 2.0158g H2/mol H2 = ???

  5. Assignments  • Practice Problems (pp.359, 360, 362)

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