Using the Following Equation for the Combustion of Octane,calculate the Amount

question 37

Multiple Choice

Using the following equation for the combustion of octane,calculate the amount of moles of oxygen that reacts with 100.0 g of octane.The molar mass of octane is 114.33 g/mole.The molar mass of carbon dioxide is 44.0095 g/mole. 2 C₈H₁₈ + 25 O₂ → 16 CO₂ + 18 H₂O ΔH°_rxn = -11018 kJ

• A) 18.18 moles
• B) 6.997 moles
• C) 14.00 moles
• D) 8.000 moles
• E) 10.93 moles

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Definitions:

Atomic Mass

The mass of an atom expressed in atomic mass units (amu), essentially equivalent to the number of protons and neutrons in the nucleus.

Atom

The basic unit of a chemical element, consisting of a nucleus of protons and neutrons, with electrons orbiting the nucleus.

Amu

Atomic Mass Unit, a standard unit of mass that quantifies mass on an atomic or molecular scale.

Valence Electrons

Electrons in the outermost shell of an atom that are available for bonding with other atoms.