Gas Stoichiometry Worksheet | Assignment - Edubirdie

University:
Everett Community College
Course:
CHEM 121 | Introduction to Chemistry
Academic year:

2012
Views:

214

Pages:

1
Author:

Bailey Snyder

Gas Stoichiometry Worksheet Solutions The following reactions take place at a pressure of 1.00 atm and a temperature of 300 K. 1) Given: CaCO3(s) + heat  CO2(g) + CaO(s) How many grams of calcium carbonate will be needed to form 4.29 liters of carbon dioxide? n = PV = (1.00 atm)(4.29 L CO2) = 0.1742 moles CO2 RT (0.0821 L atm/mole K)(300 K) 0.1742 mole CO2 x 1 mole CaCO3 x 100.09 g CaCO3 = 17.4 g CaCO3 1 mole CO2 1 mole CaCO3 2) Given: 2 C6H6(g) + 15 O2(g)  12 CO2(g) + 6 H2O(g) If 2.45 liters of benzene are consumed in this reaction, how many liters of water can be formed? n = PV = (1.00 atm)(2.45 L C6H6) = 0.0995 moles C6H6 RT (0.0821 L atm/mole K)(300 K) 0.0995 mole C6H6 x 2 mole H2O = 0.0995 mole H2O 2 mole C6H6 V = nRT = (0.0995 mole H2O)(0.0821 L atm/mole K)(300 K) = 2.45 L H2O P (1 atm)

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