Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 57

EASY

12th Uttar Pradesh Board

IMPORTANT

Earn 100

What is molal elevation constant? Does it depend on nature of the solute?

Important Questions on Solutions

EASY

12th Uttar Pradesh Board

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 58

Define molality in term of elevation in boiling point.

MEDIUM

12th Uttar Pradesh Board

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 59

A solution is prepared by

1.25 g

of oil of wintergreen (methyl salicylate) in

99 g

of benzene has a boiling point of

80.31 ° C

and

K_{b}

for benzene is

2.53 K Kg {mol}^{- 1}

. Find the molar mass of the solute. Boiling point of benzene is

80 ° C

.

MEDIUM

12th Uttar Pradesh Board

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 60

Calculate the mass percentage of benzene

(C_{6} H_{6})

and carbon tetrachloride

({C C l}_{4})

, if

22 g

of benzene is dissolved in

122 g

of carbon tetrachloride.

MEDIUM

12th Uttar Pradesh Board

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 61

Calculate the molarity of the following solution:

30 g

of

C o {({N O}_{3})}_{2} . 6 H_{2} O

in

4.3 L

of solution.

MEDIUM

12th Uttar Pradesh Board

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 62

Calculate molality of

KI

, if the density of

20 %

(mass/mass) aqueous

KI

is

1.202 g m L^{- 1} .

HARD

12th Uttar Pradesh Board

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 63

A solution of glucose in water is labelled as

10 % \frac{w}{w}

, what would be the molality and mole fraction of each component in the solution? If the density of solution is

1.2 g {mL}^{- 1}

, then what shall be the molarity of the solution?

HARD

12th Uttar Pradesh Board

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 64

An antifreeze solution is prepared from

222.6 g

of ethylene glycol

(C_{2} H_{6} O_{2})

and

200 g

of water. Calculate the molality of the solution. If the density of the solution is

1.072 g {mL}^{- 1}

, then what shall be the molarity of the solution?

MEDIUM

12th Uttar Pradesh Board

IMPORTANT

Chemistry Crash Course (Based on Revised Syllabus-2023)>Chapter 1 - Solutions>Exercise>Q 65

Sp. gr of $HCl$ solution is $1.17$ . $100 g$ of $HCl$ solution contains $36.5 g$ of acid. Calculate the normality of the solution.