Relative molecular masses in solution questions | form five Chemistry

Briefly, explain the effect of degree of dissociation of a solute on the boiling point of a
solution.

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What mass of ethylene glycol, C​_2​H​_6​O₂​ , the main component of antifreezing agent which must be added to a 10.0L of water to produce a solution for use in a car radiator, that freezes at -23.3^oC? Assume that the density of water is exactly 1g/mL and cryoscopic constant is 1.86^oC kg/mol.

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A 0.120g of haemoglobin, the protein which carries oxygen in the blood was dissolved in 200cm​³ of benzene at 20^oC. The solution exerted an osmotic pressure of 25.6Pa. Find the relative molecular mass of haemoglobin.

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A 1% solution of sodium chloride freezes at -0.604^oC. Calculate the degree of dissociation of the sodium chloride if the molal freezing point depression constant for water is 1.86^oC kg/mol.

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State four colligative properties useful for determination of molecular masses.

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