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Direct Combination

What is the f...

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What is the freezing pt of solution containing 8.1gHBr in 100g water assuming the acid to be 90% ionised?(Kf for HBr is1.86K/mol)

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Q. What is the freezing point of a solution containing

8.1 g HBr

100 g m

. water assuming the acid to be

90 %

K_{f}

= 1.86 K {molarity}^{- 1}

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)

Q. When 12.2 g of benzoic acid is dissolved in 100 g of water, the freezing point of solution was found to be

- {0.93}^{o} C (K_{f} (H_{2} O) = 1.86 K k g m o l^{- 1})

. Then the number (n) of benzoic acid molecules associated (assuming 100% association) is

Q. The freezing point of a solution containing 28.335

c m^{3}

of ethylene glycol in 50 g water is found to be

- 34^{\circ}

C. Assuming ideal behaviour, calculate the density of ethylene glycol.

K_{f}

for water 1.86 K kg

m o l^{- 1}

Q. The freezing point of a solution containing

50 c m^{3}

of ethylene glycol in 50 g of water is found to be

- 4^{o} C

. Assuming ideal behaviour, the density of ethylene glycol

(K_{f}

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

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