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Solutions — Chemistry STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceChemistrySolutions2 Marks
Question
Write the formula to determine molar mass of a solute using freezing point depression method.
✓

Answer

$M _2=\frac{K_{ f } \times W_2 \times 1000}{W_1 \times \Delta T_{ f }}$
where
$K _{ f }=$ Molal depression constant
$\Delta T_f=$ Depression in freezing point
$W _1=$ Mass of a solvent
$W _2=$ Mass of a solute.
$M _2=$ Molar mass of solute

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