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Step-by-Step Stoichiometry Calculation Guide

Learn the process for solving stoichiometry problems through a detailed example involving Copper II compounds. This guide covers writing chemical equations, converting units, and verifying mass conservation.

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Step-by-Step Stoichiometry Calculation Guide

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  1. Steps in Doing a Stoichiometry ProblemBy: Devin Campbell

  2. How many total grams of Copper II Nitride and Oxygen are needed to produce 3.27 grams of Copper II Oxide?

  3. 1. Write a complete and balanced chemical equation • 2Cu3N2 + 3O2 -----> 6CuO + 2N2

  4. 2. Draw a column after each chemical

  5. 3. Write the amount given in the correct column

  6. 4. Convert the amount given into moles

  7. 5a. In each of the other columns write moles of given (x) a fraction

  8. 5b. The numerator of the fraction is the coefficient of the column

  9. 5c. The denominator of the fraction is the coefficient of the given column

  10. 5d. Do the math and label as moles

  11. 6. Convert all mole into grams

  12. 7. Verify the law of conservation of mass

  13. Answer • You would need 3.66 total grams of Copper II Nitride and Oxygen to produce 3.27 grams of Copper II Oxide.

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