Rank the Following Solutions in Order of Increasing Osmotic Pressure

question 73

Multiple Choice

Rank the following solutions in order of increasing osmotic pressure: 1.0 m C₂H₅OH, 1.0 m Ca(NO₃) ₂, 2.0 m NaCl, 3.0 m C₆H₁₂O₆

• A)C₂H₅OH = Ca(NO₃)₂ < NaCl < C₆H₁₂O₆
• B)C₆H₁₂O₆ < NaCl < C₂H₅OH = Ca(NO₃)₂
• C)C₂H₅OH < Ca(NO₃)₂ < NaCl < C₆H₁₂O₆
• D)C₂H₅OH < Ca(NO₃)₂ = NaCl < C₆H₁₂O₆
• E)C₂H₅OH < Ca(NO₃)₂ = C₆H₁₂O₆ < NaCl

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Definitions:

Hydrophobic Region

A part of a molecule that is repelled by water and typically soluble in nonpolar solvents.

Hydrogen Bond

A weak bond formed between a hydrogen atom in one molecule and an electronegative atom, such as oxygen or nitrogen, in another molecule, important in the structure of water and biological molecules.

Polar Covalent Bond

A type of chemical bond where a pair of electrons is unequally shared between two atoms.

Water Molecule

A chemical compound consisting of two hydrogen atoms bonded to one oxygen atom, essential for all known forms of life.