change in volume when 100 ml PH₃ decomposed to solid p &H₂gas.

1. increase in 50 ml
2. decrease in 50 ml
3. increase in 150 ml
4. decrease in 200 ml

Which of the following will have highest boiling point?

a. 0.1M FeCl₃ b. 0.1M Urea c. 0.1M NaCl d. 0.1 M Glucose

what is the effect of temperature and pressure of coordination number of ionic crystals?Explain in detail.

which of following has maximum freezing point

1) pure water

2) 0.1M NaCl(aq)

3) 0.01M NaCl(aq)

4) 0.5M NaL(aq)

The vapour pressure of an aqueous solution of glucose is 750 mm Hg at 373 K . Calculate molality and mole fraction of solute.

in ideal solution of non volatile solute B and solvent Ain 2 :5 molar ratio has vapour pressure 250 mm. if a another solution in ratio 3:4 prepared then vapour pressure above this solution

1) 200 mm

2) 250 mm

3) 350 mm

4) 400 mm

which of the solutions wil have a lower vapour pressure and why?

1. a 5% solution of cane sugar

2. a 5% solution of urea

calculate the normality of a solution containing 5g NaOH in 450 ml solution.

a solution containing 8.6 g/L of urea is isotonic with 5% solution of unknown solute . The molar mass of solute will be

1) 348.9 g/mol

2) 174.5 g/mol

3) 87.3 g/mol

4) 34.89 g/mol

how is the vapour pressure of a solvent affected when a non volatile solute is dissolved in it ?

the relation between the values of osmotic pressure of 0.1M solution of KNO₃(P1) and CH₃COOH(P2) is

1) P1 P2

2) P2 P1

K4[Fe(CN)6] is supposed to be 40% dissiciated when 1M solution prepared . its boiling point is equal to another 20% mass by volume of non-electrolytic solution A . Considering molality=molarity. The molecular weight of A is

1) 77

2) 67

3) 57

4) 47

what do you expect to happen when RBC placed in

1. 1%NaCl solution

2 0.9%NaCl solution

3 0.5%NaCl solution

substance A tetramerises in water to a extent of 80% . A solution of 2.5g of A in 100g of water lowers the freezing point by 0.3degree C . The molar mass of A is

1) 122

2) 31

3) 244

4) 62

ifα(alpha) = 50% for Al₂(SO₄)₃, then van't hoff factor would be

1) 1.5

2) 0.5

3) 3

4) 2

20 ml of 0.2M Al₂(SO₄)₃ is mixed with 20ml of 6.6 M BaCl₂ , the concertration of Cl^- ion in solution is

1) 0.2

2) 6.6

3) 0.02

4) 0.06

How much volume of 3.0 M H2SO4 is required for the preparation of 1.0 litre of 1.0 M solution?

why ideal solution do not form azeotrope ?

1000g aqueous solution of CaCO3 contain 10g of calcium carbonate concentration of the solution is :

what happens when saturated solution of KCl is heated..??

degree of dissociation of Ca(NO)3 in dilute aqueous solution containing 7g of solute per 100g of water at 100degree celsius is 70%. if the vapour pressure of water at 100degree celsius is 760mm of mercury, calculate the vapour pressure of the solution

when a non volatile solute is added to a solvent the vapour pressure of the liquid decrease because the number of solvent molecules on the surface decrease and as a result number of solvent molecules escaping from the surface decrease what does it mean

two liquids having vapour pressure P1 and P2 in pure state in the ratio of 2:1 are mixed in the molar ratio of 1:2 . the ratio of their moles in vapour state would be

1) 1 :1

2) 1 :2

3) 2:1

4) 3:2

The value of Henrys constant KH is _____________.

A 5% solution (wt./mol) of cane sugar is isotonic with 0.877% (wt./vol) of urea solution . Find mol. wt. of urea if the mol. wt. of sugar is 342.

Which statement is true for solution of0.020 MH₂SO_4...........

a) 2 litre of the solution contains 0.020 mole of SO₄^2-.
b) 2 litre of the solution contains 0.080 mole of H₃O⁺.
c) 1 litre of the solution contains 0.020 mole of H₃O⁺.
d) None of these.

Please explain in detail.........
Everyone, please share their answers for the question

URGENTThe ionic strength of a solution containing 0.1 mol/kg of NaCl and 0.2 mol/kg of ZnSO₄ is : solve it ..

• A)

  0.3

• B)

  0.6

C)0.4

• D)

  0.9

if any solute A dimerises in water at 1atm pressure and the boiling point of this solution is 100.52 degree C. if 2moles of A is added to 1kg of water and K_b for water is 0.52 degreeC/ molal, calculate the percentage association of A

1) 50%

2) 30%

3) 25%

4) 100%

Calculate the normal freezing point of a sample of sea water containing 3.8% NaCl and 0.12% MgCl2 by mass.(Cryoscopic Constant for water = 1.86K/m)

Q13)

Differentiate between molality and molarity of a solution. What is the effect of change in temperature of a solution on its molality and molarity?

Molarity of a solution is defined as the number of gram moles of solute present in l L of solution, while molality of a solution is defined as the number of gram moles of solute present in 1 kg of solvent.

Molality of a solution decreases with increase in temperature, while molality of a solution is not affected by temperature.

your answer for above question is not crrect kindly rectify.

CHAPTER : THE LIQUID STATE

Which of the following molecules has the highest viscosity ?

a. acetone

b. benzene

c. ethanol

d. carbon tetrachloride

Please explain briefly.

when CuSO4 is added to a solution of ammonia

1) freezing point is lowerd

2) freeing point is raised

3) boiling point is raised

4) both 1 and 3

what weight of non volatile solute urea ,needs to be dissolved in 100gms of water in order to decrease the vapour pressure of water by 25% ?

normality of 2M sulphuric acid is....... explain

a) 2N

b) 4N

c) N/2

d) N/4

Equal amount of solute are dissloved in equal amount of two solvents A and B. The realative lowering of vapour pressure for the solution of A has twice the relative lowering of vapour pressure for solution of B. If M_A and M_B are molar mass of solvent A and B respectively, then for dilute solution of A and B with solute-

A) M_A=M_B

B)M_A=M_B/2

C)M_A=4M_B

D)M_A=2M_B

The ratio of the value of any colligative property for KCl solution to that for sugar is nearly ........... times.

1. 1
2. 0.5
3. 2
4. 2.5

the osmotic pressure of decimolar solution of urea at 27degree C

1) 2.49 bar

2) 5bar

3) 3.4 bar

4) 1.25 bar

People taking a lot of salt or salty food experience water retention in tissue cells and intercellular spaces because of osmosi.But,I think one person should lose the watwer as per osmosissolvent moves from lower concentration (cells ) to higher concentration of solution(salt water)..Then how will water will be retained,

name the solute and solvent in the following solutions:

a)syrup

b)haze9dust in air)

c)butter(water in fat)

1. 1.01
2. 1.001
3. 1.1
4. 1.04