First slide

Theory of dilute solutions

Question

Increasing order freezing points.
I. 0.1 M ethanol II. 0.1 M Ba₃(PO₄) ₂
III. 0.1 M Na₂SO₄

Moderate

A

II < III < I
B

II < I < II
C

I < III < II
D

III < I < II

Solution

Freezing point is higher if $∆ T_{f}$ is lower (depends on m_eff).
$\Rightarrow$ 0.1 M Ba₃(PO₄) ₂ < 0.1 M Na₂SO₄< 0.1 M ethanol
II < III < I

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