2 C8H18(l) + 25 O2(g) 16 CO2(g) + 18 H2O(l) (a) How many moles of O2 are needed to burn 1.95 mol of C8H18? (b) How many grams of O2 are needed to burn 1.45 g of C8H18? (c) Octane has a density of 0.692 g/mL at 20°C. How many grams of O2 are required to burn 2.55 gal. of C8H18? 1 gal = 3.79 L.

2 C8H18(l) + 25 O2(g) 16 CO2(g) + 18 H2O(l) (a) How many moles of O2 are needed to burn 1.95 mol of C8H18? (b) How many grams of O2 are needed to burn 1.45 g of C8H18? (c) Octane has a density of 0.692 g/mL at 20°C. How many grams of O2 are required to burn 2.55 gal. of C8H18? 1 gal = 3.79 L.

General Chemistry - Standalone book (MindTap Course List)

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ISBN:9781305580343

Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Chapter3: Calculations With Chemical Formulas And Equaitons

Section: Chapter Questions

Problem 3.141QP: A power plant is driven by the combustion of a complex fossil fuel having the formula C11H7S. Assume...

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Concept explainers

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".

Question

2 C₈H₁₈(l) + 25 O₂(g) 16 CO₂(g) + 18 H₂O(l)

(a) How many moles of O₂ are needed to burn 1.95 mol of C₈H₁₈?

(b) How many grams of O₂ are needed to burn 1.45 g of C₈H₁₈?

(c) Octane has a density of 0.692 g/mL at 20°C. How many grams of O₂ are required to burn 2.55 gal. of C₈H₁₈? 1 gal = 3.79 L.

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