How Many Molecules of Butane Are Contained in 25

question 141

Multiple Choice

How many molecules of butane are contained in 25.0 mL of butane? The density of butane is 0.6011 g mL^-1 and the molar mass is 58.12 g mol^-1.

• A) 2.59 × 10²³ molecules butane
• B) 1.46 × 10²⁷ molecules butane
• C) 6.87 × 10²³ molecules butane
• D) 1.56 × 10²³ molecules butane
• E) 7.14 × 10²⁵ molecules butane

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Definitions:

Lowest Common Denominator

The smallest common multiple of the denominators of two or more fractions.

Percentage

A fraction or ratio expressed as a part of 100.

Improper Fraction

A fraction where the numerator is greater than or equal to the denominator, indicating a value greater than or equal to one.