Of the following measurements, the one most \( \mathrm{P} \) suitable for the determination of t...

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Of the following measurements, the one most
\( \mathrm{P} \)
suitable for the determination of the molecular
W
mass of oxyhaemoglobin, a molecule with a molecular mass of many thousands, is
(A) the elevation of the boiling point.
(B) the depression of the freezing point.
(C) the osmotic pressure.
(D) any of the previous three, as they are all equally good.
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