A Solution Is Prepared by Mixing 22 G Ethylene Glycol

question 62

Multiple Choice

A solution is prepared by mixing 22 g ethylene glycol [C₂H₄(OH) ₂, molar mass = 62 g/mol] with 108 g of water. What is the mole fraction of ethylene glycol in the solution?

• A) 0.056
• B) 0.17
• C) 0.35
• D) 6.3
• E) none of these

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Definitions:

Blue-Black Color

A deep, dark shade combining blue and black, often associated with bruising or certain pigments.

Biuret Reagent

A chemical solution used to test for the presence of proteins, turning violet in their presence.

H+ Ions

Hydrogen ions, which are a central component in the chemistry of acids and bases and play an important role in the pH balance of biological systems.

OH- Ions

OH- ions, also known as hydroxide ions, consist of one oxygen and one hydrogen atom carrying a negative electric charge, commonly found in alkaline solutions.