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Directions: Complete each of the following problems. Reminder you must have a balanced equation to do stoichiometry problems. Show all work including all appropriate sig figs and units. 1. Given 2 Li (s) + 2 H₂O (1)→2 LiOH (aq) + H₂ (g) a. How many moles of H₂ will be produced by the complete reaction of 2.24 mole Li with excess water? b. How many grams of H₂O will be required to produce 57.80 grams of lithium hydroxide?

Directions: Complete each of the following problems. Reminder you must have a balanced equation to do stoichiometry problems. Show all work including all appropriate sig figs and units. 1. Given 2 Li (s) + 2 H₂O (1)→2 LiOH (aq) + H₂ (g) a. How many moles of H₂ will be produced by the complete reaction of 2.24 mole Li with excess water? b. How many grams of H₂O will be required to produce 57.80 grams of lithium hydroxide?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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**Stoichiometry Worksheet SU23** **Name:** Delana Bailey **Section:** N8883 --- **Directions:** Complete each of the following problems. Remind you must have a balanced equation to do stoichiometry problems. **Show all work including all appropriate sig figs and units.** 1. **Given** 2 Li (s) + 2 H₂O (l) → 2 LiOH (aq) + H₂ (g) a. How many moles of H₂ will be produced by the complete reaction of 2.24 mole Li with excess water? b. How many grams of H₂O will be required to produce 57.80 grams of lithium hydroxide? 2. **Urea, (NH₂)₂CO**, is prepared by reacting ammonia with carbon dioxide as shown by: 2 NH₃ (g) + CO₂ (g) → (NH₂)₂CO (aq) + H₂O (l) In one process, 927 g of NH₃ are treated with 1255 g of CO₂. a. How many grams of (NH₂)₂CO are produced? b. How much excess reagent, in grams, is left at the end of the reaction? 3. **The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and is used in welding metals.** 2 Al + Fe₂O₃ → Al₂O₃ + 2 Fe a. Calculate the mass of Al₂O₃ that is produced by reacting 182 g of Al with 648 g of Fe₂O₃. b. How many grams of the excess reagent is left at the end of the reaction? *Note: This worksheet contains stoichiometry problems that require understanding of chemical equations, moles, and mass calculations to solve for product formation and reagent excess.*
Transcribed Image Text:**Stoichiometry Worksheet SU23** **Name:** Delana Bailey **Section:** N8883 --- **Directions:** Complete each of the following problems. Remind you must have a balanced equation to do stoichiometry problems. **Show all work including all appropriate sig figs and units.** 1. **Given** 2 Li (s) + 2 H₂O (l) → 2 LiOH (aq) + H₂ (g) a. How many moles of H₂ will be produced by the complete reaction of 2.24 mole Li with excess water? b. How many grams of H₂O will be required to produce 57.80 grams of lithium hydroxide? 2. **Urea, (NH₂)₂CO**, is prepared by reacting ammonia with carbon dioxide as shown by: 2 NH₃ (g) + CO₂ (g) → (NH₂)₂CO (aq) + H₂O (l) In one process, 927 g of NH₃ are treated with 1255 g of CO₂. a. How many grams of (NH₂)₂CO are produced? b. How much excess reagent, in grams, is left at the end of the reaction? 3. **The reaction between aluminum and iron(III) oxide can generate temperatures approaching 3000°C and is used in welding metals.** 2 Al + Fe₂O₃ → Al₂O₃ + 2 Fe a. Calculate the mass of Al₂O₃ that is produced by reacting 182 g of Al with 648 g of Fe₂O₃. b. How many grams of the excess reagent is left at the end of the reaction? *Note: This worksheet contains stoichiometry problems that require understanding of chemical equations, moles, and mass calculations to solve for product formation and reagent excess.*
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