phenol associates in benzene to a certain extent in dimerisation reaction. A solution containing 0.02 kg of phenol in 1.0 kg of benzene has its freezing point depressed 0.69 k. Hence, the degree of association of phenol demerized will be, [`K_(f)(C_(6)H_(6)) =5.12 k "mol"^(-1)`]
a) 0.63
b) 0.73
c) 0.83
d) 0.93
A
0.63
B
0.73
C
0.83
D
0.93
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b
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DILUTE SOLUTION
NARENDRA AWASTHI|Exercise Level 1 (Q.62 To Q.91)|1 Videos
Phenol associates in benzene to form a dimer (C_6H_5OH)_2 . The freezing point of a soluton contianing 5 g of phenol in 250 g of benzene is lowerd by 0.70^@C . Calculate the degree of association of phenol in benzene. (K_f for benzene=5.12 Km^-1)
The freezing point of solution containing 0.2 g of acetic acid in 20.0 g of benzene is lowered by 0.45^(@)C . Calculate the degree of association of acetic acid in benzene. (K_(f)=5.12 K^(@) mol^(-1) kg^(-1))
5 . 0 g of phenol dissolved in 250 g of benzene shows a depression in freezing point equal to 0 . 70^(@) C. What is the percentage association of phenol ? ( K_(f) for benzene = 5.12 K kg. MOL^(-1) )
The freezing point of a solution containing 0.3 g of acetic acid in 30.0 g of benzene is lowered by 0.45^@ . Calculate the Van's Hoff factor. (K_f for benzene=5.12K kg mol^-1) .
One molal solution of a carboxylic acid in benzene shows the elevation of boiling point of 1.518 K. The degree of association for simerization of the acid in benzene is ( K_(b) for beznene = 2.53 K kg mol^(-1) ):
A solution of 1.25 g of P in 50 g of water lowers freezing point by 0.3K . Molar mass of P is 94 and k_f(water)=1.86K kg mol^-1) . The degree of association of P if it forms dimers in water is
On dissolving 0.25 g of a non-volatile substance in 30 mL of benzene (density 0.8 g "mol"^(-1) ) its freezing point decreases by 0.40^(@)C . Calculate the molecular mass of the non-volatile substance. ( K_(f) for benzene is 5.12 k m^(-1) )
The freezing point of a solution containing 0.1g of K_3[Fe(CN)_6] in 100 g of water. (K_f=1.86 K kg mol^-1) is
The boiling point of a solution containing 1.5 g of a dichlorobenzene in 100 g of benzene was higher by 0.268^@C . Calculate the molar mass of dichlorobenzene (K_b for benzene=2.62 degree molal^(-1)) .
0.01 m aqueous solution of sodium sulphate depresses the freezing point of water by 0.0284^@C . Calculate the degree of dissociation of the salt. (k_f of water = 1.86 Km^-1)
NARENDRA AWASTHI-DILUTE SOLUTION-Level 3 - Match The Column
