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How many molecules of oxygen gas were initially present in the reaction vessel?

How many molecules of oxygen gas were initially present in the reaction vessel?

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter4: Stoichiometry: Quantitative Information About Chemical Reactions
Section: Chapter Questions
Problem 82GQ: The reaction of iron metal and chlorine gas to give iron(III) chloride is illustrated below. (a)...
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Part D As with any combustion reaction, the products of combusting a hydrocarbon fuel (C,H,) with oxygen (O2) are carbon dioxide (CO2) and water (H2 O). A mass of 15.74 g for an unknown fuel was combusted in a reaction vessel containing an unknown amount of oxygen. At the end of the reaction, there still remained 15.68 g of the fuel as well as 0.0981 g of water and 0.1797 g of carbon dioxide. The oxygen was completely consumed during the reaction. How many molecules of oxygen gas were initially present in the reaction vessel? Express the number of molecules to three significant digits. • View Available Hint(s) 1] ? amount of O2 = molecules Submit
Transcribed Image Text:Part D As with any combustion reaction, the products of combusting a hydrocarbon fuel (C,H,) with oxygen (O2) are carbon dioxide (CO2) and water (H2 O). A mass of 15.74 g for an unknown fuel was combusted in a reaction vessel containing an unknown amount of oxygen. At the end of the reaction, there still remained 15.68 g of the fuel as well as 0.0981 g of water and 0.1797 g of carbon dioxide. The oxygen was completely consumed during the reaction. How many molecules of oxygen gas were initially present in the reaction vessel? Express the number of molecules to three significant digits. • View Available Hint(s) 1] ? amount of O2 = molecules Submit
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