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At $100 ° C,$ benzene and toluene have a vapour pressure of $600$ and $1000 torr$ respectively. Assuming these two form an ideal solution, calculate the mole fraction of benzene in a solution that boils at $1 atm$ and $100 ° C ?$

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Important Questions on Solutions

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Practice Book for MHT-CET Chemistry (Physical Chemistry 2)>Chapter 2 - Solutions>TOPICWISE QUESTIONS>Q 91

The ratio of

{ΔT}_{b} / K_{b}

6 % \frac{w}{w} {AB}_{2}

and

9 % \frac{w}{w} A_{2} B ({AB}_{2}

and

A_{2} B

both are non-electrolytes) is

1 mol / kg

in both cases. Hence, atomic masses of

A

and

B

are respectively,

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Practice Book for MHT-CET Chemistry (Physical Chemistry 2)>Chapter 2 - Solutions>TOPICWISE QUESTIONS>Q 92

Vapour pressure of a highly dilute solution of a sparingly soluble salt $AB$ is $20 mm$ of $Hg$ at temperature $T,$ while pure water exerts a pressure of $20.005 mm$ $Hg$ at the same temperature. The solubility product constant of $AB$ at the same temperature is approximately:

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Practice Book for MHT-CET Chemistry (Physical Chemistry 2)>Chapter 2 - Solutions>TOPICWISE QUESTIONS>Q 93

The osmotic pressure of naphthalene solution at

27 ° C

500 mm .

When the solution is diluted and the temperature is raised to

47 ° C,

the osmotic pressure of the solution becomes

105 mm .

The extent of dilution approximately is

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Practice Book for MHT-CET Chemistry (Physical Chemistry 2)>Chapter 2 - Solutions>TOPICWISE QUESTIONS>Q 94

0.1 M NaCl (aq .)

and

0.2 M {AgNO}_{3} (aq .)

solutions are mixed in

3 : 1

volume ratio. The freezing point of the resulting solution is

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Practice Book for MHT-CET Chemistry (Physical Chemistry 2)>Chapter 2 - Solutions>TOPICWISE QUESTIONS>Q 95

How many grams of sucrose $(Molecular weight$ $= 342)$ should be dissolved in $100 g$ water in order to produce a solution with a $105 ° C$ difference between the freezing point and boiling temperatures?

$(K_{f} = 1.86 ° C kg / mol, K_{b} = 0.51 ° C kg / mol)$

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Practice Book for MHT-CET Chemistry (Physical Chemistry 2)>Chapter 2 - Solutions>TOPICWISE QUESTIONS>Q 96

pH

of a

0.1 M

monobasic acid is found to be

2 .

Hence, its osmotic pressure at a given at temperature

T K

is:

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Practice Book for MHT-CET Chemistry (Physical Chemistry 2)>Chapter 2 - Solutions>TOPICWISE QUESTIONS>Q 97

The osmotic pressure of blood is $7.65 atm$ at $310 K .$ An aqueous solution of glucose that will be isotonic with blood is ....... $\frac{w}{V}$ .

$(C = 12 u, H = 1 u, O = 16 u)$

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Practice Book for MHT-CET Chemistry (Physical Chemistry 2)>Chapter 2 - Solutions>TOPICWISE QUESTIONS>Q 98

The amount of ice that will separate on cooling a solution containing

50 g

of ethylene glycol In

200 g

water to

- 9.3 ° C

is:

(K_{f} = 1.86 K {molal}^{- 1})

At 100°C, benzene and toluene have a vapour pressure of 600 and 1000 torr respectively. Assuming these two form an ideal solution, calculate the mole fraction of benzene in a solution that boils at 1 atm and 100°C?

Important Questions on Solutions

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At $100 ° C,$ benzene and toluene have a vapour pressure of $600$ and $1000 torr$ respectively. Assuming these two form an ideal solution, calculate the mole fraction of benzene in a solution that boils at $1 atm$ and $100 ° C ?$