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Chem 1075 Chapter 10 Practice B: Balancing Chemical Equations and Calculating Masses - Pro, Assignments of Chemistry

Practice b exercises from chem 1075, chapter 10. Students are required to balance chemical equations, identify the type of reaction, and calculate the number of molecules and grams of reactants and products involved in the reactions. The exercises involve octane, oxygen, water, and carbon dioxide.

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Pre 2010

Uploaded on 08/18/2009

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Chem 1075 Chapter 10 Practice B Name____________________
1. Balance the following chemical equation:
_____C8H18 + _____O2 —> _____H2O + _____CO2
2. What type of reaction would it be classified as?_________________________
3. How many molecules of C8H18 are in 25.0g of octane?
4. Using the balanced equation above, consider each of the following questions separately from each other.
A) If 25.0 g of octane, C8H18, are reacted, then how many grams of oxygen are needed?
B) If 54.32g of water are formed, then how many grams of carbon dioxide would also form?
C) If 15.0 g of C8H18 were reacted with 25.0 g of O2, then how many grams of water would be
formed? What is the limiting reactant? What is the excess reactant?
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Download Chem 1075 Chapter 10 Practice B: Balancing Chemical Equations and Calculating Masses - Pro and more Assignments Chemistry in PDF only on Docsity!

Chem 1075 Chapter 10 Practice B Name____________________

  1. Balance the following chemical equation: _____C 8 H 18 + _____O 2 —> _____H 2 O + _____CO 2
  2. What type of reaction would it be classified as?_________________________
  3. How many molecules of C 8 H 18 are in 25.0g of octane?
  4. Using the balanced equation above, consider each of the following questions separately from each other. A) If 25.0 g of octane, C 8 H 18 , are reacted, then how many grams of oxygen are needed?

B) If 54.32g of water are formed, then how many grams of carbon dioxide would also form?

C) If 15.0 g of C 8 H 18 were reacted with 25.0 g of O 2 , then how many grams of water would be formed? What is the limiting reactant? What is the excess reactant?

PDF created with FinePrint pdfFactory trial version http://www.pdffactory.com