Question

1. Equal numbers of moles of two soluble substances; A & B, are dissolved into 1 L of water

separately. Explain the following:

a) The Water samples are cooled down. Solution A freezes at -0.5°C and B at -1°C. How

these solutions can have different freezing points?

b) Compare the freezing point of 500 mL of solution B with the 1 L of solution A.

c) Calculate the molality of the solution A & B assuming i=1 for substance A.

d) Describe the change of freezing point if you add 1 Kg of water into solution B.

e) What would be the concentrations of A & B if they have the freezing point of -0.05°C?

f) Compare the all-other colligative properties of the original solutions of A & B.​

Answer 1

Answer:

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