How Many Grams of Oxygen Gas Are Required to Completely

question 72

Multiple Choice

How many grams of oxygen gas are required to completely react with 77.28 g of ethane (C₂H₆) in the balanced redox reaction: 2 C₂H₆(g) + 7 O₂(g) → 4 CO₂(g) + 6 H₂O(g) ?

• A)77.28 g of O₂(g)
• B)23.50 g of O₂(g)
• C)143.9 g of O₂(g)
• D)8.995 g of O₂(g)
• E)287.8 g of O₂(g)

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Definitions:

Fixed Costs

Costs that do not change with the level of output or sales in the short term.

EPS

Earnings Per Share, a measure of a company's profitability, calculated as net income divided by the number of outstanding shares.

DFL

Degree of Financial Leverage, a ratio that measures the sensitivity of a company's earnings per share to fluctuations in its operating income due to changes in its capital structure.

EBIT

Earnings Before Interest and Taxes, a financial measure that calculates a company's profitability based on its operations without the effects of interest and taxes.