Choose the Aqueous Solution with the Highest Vapour Pressure

question 69

Multiple Choice

Choose the aqueous solution with the highest vapour pressure. These are all solutions of nonvolatile solutes and you should assume ideal van't Hoff factors where applicable.

• A) 0.50 mol kg^-1 C₃H₈O₃
• B) 0.50 mol kg^-1 C₂H₆O₂
• C) 0.50 mol kg^-1 C₆H₁₂O₆
• D) 0.50 mol kg^-1 C₁₂H₂₂O₁₁
• E) They all have about the same vapour pressure.

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Definitions:

Magma

Molten rock beneath the Earth's surface, which can cool and solidify to form igneous rocks.

Pyroclastic Eruption

A volcanic eruption where hot fragments and magma are thrown into the air; also refers to a deposit or rock produced by such an event.

Dissolved Gas

Gas that is mixed in a solution, often referring to gases mixed in liquids such as water, which can affect water quality and marine life.

Porphyritic Texture

A texture in igneous rocks characterized by larger crystals, known as phenocrysts, embedded in a finer-grained matrix.