O = 16.00g/molMg = 24.31g/mol 15. Magnesium and oxygen combine to form Magnesium Oxide. If 4.00 grams of Mg isignited in 7.20 grams of pure oxygen:a. Which element is in excess?b. How much excess of that element is there?c. What mass of MgO will be produced?

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Which element is in excess?

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter5: Stoichiometry

Section: Chapter Questions

Problem 38E: An element X bas five major isotopes, which are listed below along with their abundances. What is...

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.

Question

O = 16.00g/mol

Mg = 24.31g/mol

15. Magnesium and oxygen combine to form Magnesium Oxide. If 4.00 grams of Mg is
ignited in 7.20 grams of pure oxygen:
a. Which element is in excess?
b. How much excess of that element is there?
c. What mass of MgO will be produced?

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