Concept explainers
Interpretation:
The volume of air that would be needed to combust
Concept introduction:
The stoichiometry of a chemical species involved in a
Where,
•
•
Answer to Problem 11.68E
The volume of air that would be needed to combust
Explanation of Solution
The complete combustion reaction of methane is represented as,
The given mass of methane is
The molar mass of oxygen is
The molar mass of methane is
The number of moles of a substance is given as,
Where,
•
•
Substitute the mass and molar mass of methane in the equation (1).
Therefore, the number of moles of methane present in the reaction mixture is
One mole of methane reacts with two moles of oxygen gas. Therefore, the relation between the number of moles of methane and oxygen is given as,
Where,
•
•
Substitute the value of
The pressure of a substance at STP is
The temperature of a substance at STP is
The ideal gas equation is given as,
Where,
•
•
•
•
•
Rearrange the above equation for the value of
Substitute the value of number of moles of oxygen,
Therefore, the volume of oxygen required to react with methane is
It is given that air is composed of about
The formula for volume percentage is represented as:
Where,
•
•
Rearrange the above equation for the value of
Substitute the value of volume percentage of oxygen and volume of oxygen in the equation (5).
Therefore, the volume of air that would be needed to combust
The volume of air that would be needed to combust
Want to see more full solutions like this?
Chapter 11 Solutions
Chemistry for Today: General, Organic, and Biochemistry
- What does “STP’ stand for? What conditions correspond to STP? What is the volume occupied by one mole of an ideal gas at STParrow_forwardAn organic compound contains C, H, N, and O. Combustion of 0.1023 g of the compound in excess oxygen yielded 0.2766 g CO2 and 0.0991 g H2O. A sample of 0.4831 g of the compound was analyzed for nitrogen by the Dumas method (see Exercise 129). At STP, 27.6 mL of dry N2 was obtained. In a third experiment, the density of the compound as a gas was found to be 4.02 g/L at 127C and 256 torr. What are the empirical and molecular formulas of the compound?arrow_forwardHow does hydraulic fracturing differ from previously used techniques for the recovery of natural gas from the earth?arrow_forward
- 51 What volume of oxygen at 24 C and 0.88 atm is needed to completely react via combustion with 45 g of methane gas?arrow_forwardDiborane reacts with O2 to give boric oxide and water vapor. B2H6(g) + 3 O2(g) → B2O3(s) + 3 H2O(g) 1. What mass of O2 gas is required to react completely with 1.5 L of B2H6 at 25 °C and 0.15 atm? 0.29 g 0.59 g 0.44 g 0.88 garrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning