The ratio between the moles of magnesium used and the moles of oxygen uses is 4/3.question Identify major sources of error in this experiment. Explain how the magnesium: oxygen ratio would be affected by each error you identify.The experiment procedure is as follows: Procedure: Obtain a 25 cm piece of magnesium ribbon. The exact length is not important. 2. Find the mass of the magnesium ribbon and record it in the data table. Setup the apparatus with the retort stand, ring clamp, Bunsen burner and clay triangle sitting on the ceramic tile hot plate. Find the mass of the empty crucible and record it in the data table. Roll the ribbon of magnesium into a spiral or crush it into a compacted mass and place it in the crucible. Cover the crucible and heat strongly for 5 minutes or until red hot. With the crucible tongs gently lift the crucible lid to let air into the crucible. 8. With the lid left slightly open discontinue heating. Remove the crucible lid and let the crucible cool before massing it again.

The balanced chemical equation for the combustion of Mg in the presence of oxygen gas can be written…

Answered: The ratio between the moles of…

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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The ratio between the moles of magnesium used and the moles of oxygen uses is 4/3.

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Identify major sources of error in this experiment. Explain how the magnesium: oxygen ratio would be affected by each error you identify.

The experiment procedure is as follows:

Procedure:

Obtain a 25 cm piece of magnesium ribbon. The exact length is not important. 2. Find the mass of the magnesium ribbon and record it in the data table.
Setup the apparatus with the retort stand, ring clamp, Bunsen burner and clay triangle sitting on the ceramic tile hot plate.
Find the mass of the empty crucible and record it in the data table.
Roll the ribbon of magnesium into a spiral or crush it into a compacted mass and place it in the crucible.
Cover the crucible and heat strongly for 5 minutes or until red hot.
With the crucible tongs gently lift the crucible lid to let air into the crucible. 8. With the lid left slightly open discontinue heating.
Remove the crucible lid and let the crucible cool before massing it again.

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