In the lab you measure a clean, dry, crucible & cover to be 24.36 grams. You obtain a 2 cm piece of pure magnesium metal. After polishing the magnesium, you place it into your crucible and together the mass of the crucible, cover and magnesium was determined to be 24.66 grams. You observe that the magnesium is gray and shiny. You heat the crucible gently at first then vigorous for 10 minutes until the magnesium ignites. After the crucible cools you add a few drops of distilled water and heat again. The mass of the magnesium compound, crucible, and cover was determined to be 24.85 grams. Determine the empirical formula of the compound. Show all work & units. The empirical formula can be determined via stepwise calculation of the quantities below. Mass of the Mg Mass of the MgO Mass of O Moles of Mg & Moles of O: Molar ratio of Mg/O: Empirical formula of compound, MgxOy
In the lab you measure a clean, dry, crucible & cover to be 24.36 grams. You obtain a 2 cm piece of pure magnesium metal. After polishing the magnesium, you place it into your crucible and together the mass of the crucible, cover and magnesium was determined to be 24.66 grams. You observe that the magnesium is gray and shiny. You heat the crucible gently at first then vigorous for 10 minutes until the magnesium ignites. After the crucible cools you add a few drops of distilled water and heat again. The mass of the magnesium compound, crucible, and cover was determined to be 24.85 grams. Determine the empirical formula of the compound. Show all work & units. The empirical formula can be determined via stepwise calculation of the quantities below. Mass of the Mg Mass of the MgO Mass of O Moles of Mg & Moles of O: Molar ratio of Mg/O: Empirical formula of compound, MgxOy
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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In the lab you measure a clean, dry, crucible & cover to be 24.36 grams. You obtain a 2 cm piece of pure magnesium metal. After polishing the magnesium, you place it into your crucible and together the mass of the crucible, cover and magnesium was determined to be 24.66 grams. You observe that the magnesium is gray and shiny. You heat the crucible gently at first then vigorous for 10 minutes until the magnesium ignites. After the crucible cools you add a few drops of distilled water and heat again. The mass of the magnesium compound, crucible, and cover was determined to be 24.85 grams.
Determine the empirical formula of the compound. Show all work & units. The empirical formula can be determined via stepwise calculation of the quantities below.
- Mass of the Mg
- Mass of the MgO
- Mass of O
- Moles of Mg & Moles of O:
- Molar ratio of Mg/O:
Empirical formula of compound, MgxOy
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