A Certain Compound Is Found to Have the Percent Composition

question 57

Multiple Choice

A certain compound is found to have the percent composition (by mass) of 85.63% C and 14.37% H. The molar mass of the compound was found to be 42.0 g/mol. Calculate the empirical formula and the molecular formula.

• A) C₂H₃ and C₄H₆
• B) CH and C₃H₃
• C) CH₂ and C₃H₆
• D) CH₃ and C₂H₆
• E) C₂H₆ and C₃H₉

---

Definitions:

Average Total Cost

The sum of all production costs (fixed and variable) divided by the quantity of output produced.

Average Variable Cost

The per unit cost of variable factors of production, calculated by dividing total variable costs by the quantity of output.

Economic Profit

The total revenue of a firm minus its explicit and implicit costs, representing the financial gain exceeding the opportunity cost.

Purely Competitive Market

A market structure characterized by many buyers and sellers, free entry and exit, and a homogenous product.