A solution of 0.640 g of azulene in 100.0 g of benzene boils at ${80.23}^{0} C$ . The boiling point of benzene is ${80.10}^{0} C$ ; the $K_{b}$ is ${2.53}^{0} C / m o l a l$ . What is the molecular weight of azulene?
108
99
125
134

108

125

134

Open in App

Solution

Verified by Toppr

Was this answer helpful?

Similar Questions

A solution of 0.640 g of azulene in 100.0 g of benzene boils at

{80.23}^{0} C

. The boiling point of benzene is

{80.10}^{0} C

; the

K_{b}

{2.53}^{0} C / m o l a l

. What is the molecular weight of azulene?

View Solution

One molal solution of benzoic acid in benzene boils at $$ 81.53^0 C .$$ The normal boiling point of benzene is $$ 80.10^0 C .$$ Assuming that the solute is 90% dimerized, the value of $$ K_b $$ for benzene is

View Solution

30 g

of a solute of molecular weight

154 g m o l^{- 1}

is dissolved in

250 g

of benzene, what will be the boiling point of the resulting solution under atmospheric pressure?
The molal boiling-point elevation constant for benzene is

2.61 K k g m o l^{- 1}

and the boiling point of pure benzene is

{80.1}^{o} C .

View Solution

A compound has the empirical formula $$C_{10}H_8Fe$$. A solution of $$0.26$$ g of the compound in $$11.2 g$$ of benzene $$(C_6H_6)$$ boils at $$80.26C.$$ The boiling point of benzene is $$80.10C;$$ the Kb is $$2.53C/molal$$. What is the molecular formula of the compound?

View Solution

A solution of

2.5

g of a non-volatile solid in

100

g benzene is boiled at

{0.42}^{o} C

higher than the boiling point of pure benzene. Calculate the molecular mass of the substance. Molal elevation constant of benzene is

2.67 K . k g . m o l^{- 1}

View Solution

A solution of 0.640 g of azulene in 100.0 g of benzene boils at 80.230C. The boiling point of benzene is 80.100C; the Kb is 2.530C/molal. What is the molecular weight of azulene?10899125134

A solution of 0.640 g of azulene in 100.0 g of benzene boils at ${80.23}^{0} C$ . The boiling point of benzene is ${80.10}^{0} C$ ; the $K_{b}$ is ${2.53}^{0} C / m o l a l$ . What is the molecular weight of azulene?
108
99
125
134