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Depression in Freezing Point

The freezing ...

Question

The freezing point of a solution containing $50 c m^{3}$ of ethylene glycol in 50 g water is found to be $- 34^{o} C$ . Assuming dilute solution, the density of solution is: $(K_{f}$ for $H_{2} O = 1.86 K m o l a l i t y^{- 1})$

1.133 g / c m^{3}

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2.133 g / c m^{3}

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0.133 g / c m^{3}

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1.62 g / c m^{3}

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Solution

The correct option is C $1.133 g / c m^{3}$
The density of solution is $1.133 g / c m^{3}$
$Δ T_{f} = \frac{1000 \times K_{f} \times w}{m \times W}$
$∴ 34 = \frac{1000 \times 1.86 \times 50 \times d}{62 \times 50}$
$∴ d = 1.133 g / c m^{3}$

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Similar questions

50 {cm}^{3}

50 g

{g/cm}^{3}

(K_{f} for water = 1.86 {K Kg mol}^{- 1})

c m^{3}

- 34^{\circ}

K_{f}

m o l^{- 1}

50 c m^{3}

- 4^{o} C

(K_{f}

= 1.86 K k g m o l^{- 1}

50 {cm}^{3}

50 g

- 34^{\circ} C

K_{f}

= 1.86 {K kg mol}^{- 1}

- 34^{\circ} C

(K_{f} f o r w a t e r = 1.86 K k g m o l^{-} 1)

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