Mainly which colligative property is used to determine molar mass of a polymer?
Correct answer: C. osmotic pressure
- A. elevation in boiling point
- B. depression in freezing point
- C. osmotic pressure
- D. relative lowering of vapour pressure
Explanation
For determining the molar mass of a polymer osmotic pressure is preferred because it is done at normal (room) temperature. At higher temperatures molecules are not stable.
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About Solutions and Colloids
Solutions are described using molarity, molality, normality, mole fraction, percentage concentration and parts per million. Coverage also includes vapour-pressure lowering, boiling-point elevation, freezing-point depression and osmotic pressure, then distinguishes true solutions, colloids and suspensions by particle size, stability, light scattering and settling.
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