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:

Oligotrophic Lake

A lake characterized by low nutrient concentrations, which typically supports little aquatic plant life.

Invertebrates

Animals that lack a vertebral column, including species such as insects, crustaceans, and mollusks.

Decomposers

Organisms, such as bacteria and fungi, that break down dead or decaying organic matter, recycling nutrients back into the ecosystem.

Low Oxygen

Conditions where the level of oxygen in an environment is below the necessary threshold to support most life forms.