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Depression in Freezing Point

What is the f...

Question

What is the freezing point of a solution containing 8.1 g HBr in 100g water assuming the acid to be 90% ionised (K_f for water =1.86 Kmole^-1)

${0.85}^{\circ} C$

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$- {3.53}^{\circ} C$

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$0^{\circ} C$

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$- {0.35}^{\circ} C$

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Solution

The correct option is B
$- {3.53}^{\circ} C$

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Similar questions

What is the freezing point of a solution containing 8.1 g HBr in 100g water assuming the acid to be 90% ionised (K_f for water =1.86 Kmole^-1)

0.1

30

K_{f}

{1.86}^{\circ} C / m

The freezing point of 1 molal NaCl solution assuming NaCl to be 100% dissociated in water is K_f = 1.86 k kg mol^-1)

0.5

20 %

K_{f}

1.86 {K kg mol}^{- 1}

50 {cm}^{3}

50 g

- 34^{\circ} C

K_{f}

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

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