When a solution containing 50 gm ethylene glycol in 200 gm water is cooled to –9.3°C, the amount of ice separated out is —

Question

Aayush Asked Jan 31

48 views

1 Answer

RELATED DOUBTS

Aayush Asked Feb 2

70 views

0.05 mole of LiAIH4 in ether solution was placed in a flask containing 74g (1 mole) of t-butyl alcohol. The product LiAIHC12H27O3 weighed 12.7 g. If Li atoms are conserved, the percentage yield is —

Aayush Asked Feb 2

by Aayush

1 Answer

0 Votes

70 Views

Chandan Asked Sep 15, 2023

243 views

A cell is containing two H electrodes. The negative electrode is in contact with a solution of 10^{-6} M H+ ions. The emf of the cell is 0.118 V at $25^{\circ} {C}$. What is the $\left[{H}^{+}\right]$at positive electrode?

Chandan Asked Sep 15, 2023

by Chandan

1 Answer

0 Votes

243 Views

Aayush Asked Feb 1

72 views

A 10% w/w solution of cane sugar has undergone partial inversion according to the reaction : Sucrose + water →glucose + fructose . The boiling point of the solution is 100.7°C. What fraction of sugar has inverted?

Aayush Asked Feb 1

by Aayush

1 Answer

0 Votes

72 Views

AnjaliYadav Asked Nov 5, 2022

154 views

What happens when the temperature of a solution is increased from 25°C to 65°C?

AnjaliYadav Asked Nov 5, 2022

by AnjaliYadav

1 Answer

1 Vote

154 Views

Aayush Asked Jan 30

55 views

75 mL of H2SO4 solution (specific gravity = 1.18), containing 49% H2SO4 by mass, is diluted to 590 mL. Calculate molarity of the diluted solution.

Aayush Asked Jan 30

by Aayush

1 Answer

0 Votes

55 Views

Aayush Asked Jan 30

57 views

What volume of 0.25 M HNO3 (nitric acid) solution reacts with 50 mL of 0.15 M Na2CO3 (sodium carbonate) solution in the following reaction —

Aayush Asked Jan 30

by Aayush

1 Answer

0 Votes

57 Views

John Michael Asked Aug 10, 2023

164 views

If a solution containing components A and B follows Raoult's law then

John Michael Asked Aug 10, 2023

by John Michael

1 Answer

0 Votes

164 Views

Aayush Asked Apr 7

36 views

How can you recover common salt from its solution in water?

Aayush Asked Apr 7

by Aayush

1 Answer

0 Votes

36 Views

Aayush Asked Feb 2

90 views

0.65 g of Zn was put in a solution of 1.5 g CuSO4 and the Cu. thus precipitated weighed 0.635 g. what weight of the zinc sulphate will be recovered on evaporation of the remaining solution?

Aayush Asked Feb 2

by Aayush

1 Answer

0 Votes

90 Views

ALOK_RAJ Asked Nov 28, 2023

64 views

When chlorine water is added to an aqueous solution of potassium halide in presence of chloroform, a violet colour is obtained.

ALOK_RAJ Asked Nov 28, 2023

by ALOK_RAJ

1 Answer

1 Vote

64 Views

Aayush Asked Feb 22

49 views

The vapor pressures of benzene, toluene and a xylene are 75 Torr, 22 Torr and 10 Torr at 20°C. Which of the following is not a possible value of the vapor pressure of an equimolar binary/ternary solution of these at 20°C? Assume all form ideal solution with each other.

Aayush Asked Feb 22

by Aayush

1 Answer

0 Votes

49 Views

Aayush Asked Jan 30

64 views

Which of the following methods of expressing concentration of a solution is/are independent of temperature?

Aayush Asked Jan 30

by Aayush

1 Answer

0 Votes

64 Views

Chandan Asked Sep 15, 2023

91 views

Two faraday's of electricity are passed through a solution of CuSO4. The mass of copper deposited at the cathode is (at. mass of Cu=63.5 amu)

Chandan Asked Sep 15, 2023

by Chandan

1 Answer

0 Votes

91 Views

Aayush Asked Jan 5

76 views

In a mixture, the ratio of milk and water is 8: 7. If 11 litres of water is mixed, then the ratio becomes 8: 9. Find the amount of milk in the initial mixture.

Aayush Asked Jan 5

by Aayush

1 Answer

0 Votes

76 Views

ALOK_RAJ Asked Oct 18, 2023

191 views

A resistance of $50 \Omega$ is registered when two electrodes are suspended into a beaker containing a dilute solution of a strong electrolyte such that exactly half of the them are submerged into solution.

ALOK_RAJ Asked Oct 18, 2023

by ALOK_RAJ

1 Answer

0 Votes

191 Views

ALOK_RAJ Asked Aug 19, 2023

119 views

What approximate volume of 0.40 M Ba(OH)2 solution must be added to 50.0 mL of 0.30 M NaOH solution to get a solution in which the molarity of the OH− ions is 0.50 M?

ALOK_RAJ Asked Aug 19, 2023

by ALOK_RAJ

1 Answer

0 Votes

119 Views

Chandan Asked Sep 11, 2023

180 views

A vessel of volume $8.0 \times 10^{-3} m ^{3}$ contains an ideal gas at 300 K and 200 kPa. The gas is allowed to leak till the pressure falls to 125 kPa. Calculate the amount of the gas (in moles) leaked assuming that the temperature remains constant.

Chandan Asked Sep 11, 2023

by Chandan

1 Answer

0 Votes

180 Views

ANAND_YADAV Asked Aug 7, 2023

117 views

Resistance of 0.2 M solution of an electrolyte is 50Ω. The specific conductance of the solution is $1.4 {~S}{~m}^{-1}$. The resistance of $0.5 {M}$ solution of the same electrolyte is $280 \Omega$.

ANAND_YADAV Asked Aug 7, 2023

by ANAND_YADAV

1 Answer

0 Votes

117 Views

Chandan Asked Aug 6, 2023

220 views

The osmotic pressure of sugar solution is 2.46 atm at 27°C. Calculate the concentration of the solution.

Chandan Asked Aug 6, 2023

by Chandan

1 Answer

0 Votes

220 Views

Barjes Yadav Asked Feb 22

29 views

A stone of 1 kg is thrown with a velocity of 20 m s¹ across the frozen surface of a lake and comes to rest after travelling a distance of 50 m. What is the force of friction between the stone and the ice?

Barjes Yadav Asked Feb 22

by Barjes Yadav

1 Answer

0 Votes

29 Views

Chandan Asked Oct 6, 2023

87 views

When 10 gm of a non-volatile solute is dissolved in 100 gm of benzene its boiling point raised by 1º. What is the molecular mass of solute?

Chandan Asked Oct 6, 2023

by Chandan

1 Answer

0 Votes

87 Views

ALOK_RAJ Asked Aug 18, 2023

79 views

300 ml of 3.0 M NaCl solution is added to 200 ml of 4.0 M BaCl2 solution. The concentration of Cl− ions in the resulting solution is —

ALOK_RAJ Asked Aug 18, 2023

by ALOK_RAJ

1 Answer

0 Votes

79 Views

ANAND_YADAV Asked Jul 30, 2023

111 views

61.25% (w/w) H2SO4 stock solution has a density of $1.6 g mL ^{-1}$. The molecular weight of H2SO4 is $98 g mol ^{-1}$. The volume $( mL )$ of stock solution required to prepare a 200 mL solution of 0.3 M H2SO4 is :

ANAND_YADAV Asked Jul 30, 2023

by ANAND_YADAV

1 Answer

0 Votes

111 Views

ANAND_YADAV Asked Aug 2, 2023

82 views

A Carnot refrigerator extracts heat from water at $0^{\circ}{C}$ and rejects it to room at $24.4^{\circ}{C}$. The work required by the refrigerator for every $1{kg}$ of water converted into ice is

ANAND_YADAV Asked Aug 2, 2023

by ANAND_YADAV

1 Answer

0 Votes

82 Views

Chandan Asked Sep 12, 2023

178 views

100 mL of air containing only oxygen and nitrogen is taken in a jar over water. NO is slowly passed till more brown fumes appear in the gas jar. It is found that 42 mL of NO is required. The percentage nitrogen in the air would be:

Chandan Asked Sep 12, 2023

by Chandan

1 Answer

0 Votes

178 Views

ALOK_RAJ Asked Aug 3, 2023

85 views

Thomas throws a silver coin in the sea. The density of the coin is 0.985 gm/m3. Will the coin float on the surface of water or it will sink?

ALOK_RAJ Asked Aug 3, 2023

by ALOK_RAJ

1 Answer

0 Votes

85 Views

Chandan Asked Aug 13, 2023

169 views

A galvanic cell is constructed as follows. A half-cell consists of a platinum wire immersed in a solution containing $1.0 {M}$ of ${Sn}^{2+}$ and $1.0 {M}$ of ${Sn}^{4+}$, and another half-cell has a thallium rod immersed in a 1.0 M solution of ${Tl}^{+}$.

Chandan Asked Aug 13, 2023

by Chandan

1 Answer

1 Vote

169 Views

ALOK_RAJ Asked Aug 18, 2023

93 views

Which of the following molarity values of ions in an aqueous solution containing 5.85 % w/v NaCl , 5.55 % w/v CaCl2 and 6% w/v NaOH is/are correct :

ALOK_RAJ Asked Aug 18, 2023

by ALOK_RAJ

1 Answer

0 Votes

93 Views

Aayush Asked Apr 7

30 views

Explain, Why is it difficult for a fireman to hold a hose, which ejects large amount of water at a high velocity?

Aayush Asked Apr 7

by Aayush

2 Answers

0 Votes

30 Views

Chandan Asked Aug 9, 2023

177 views

A4: 1 molar ratio mixture of helium and methane is contained in a vessel at 10 bar pressure. Due to a hole in the vessel, the gas mixture leaks out. The molar ratio composition of the mixture effusing out initially is :

Chandan Asked Aug 9, 2023

by Chandan

1 Answer

0 Votes

177 Views

Chandan Asked Aug 9, 2023

86 views

Dissolving 120 g of urea (molar mass 60 ) in 990 g of water gave a solution of density 1.11 g / ml. Select the correct statements :

Chandan Asked Aug 9, 2023

by Chandan

1 Answer

0 Votes

86 Views

ALOK_RAJ Asked Aug 3, 2023

132 views

When a teaspoon of solid sugar is dissolved in a glass of liquid water, what phase or phases are present after mixing?

ALOK_RAJ Asked Aug 3, 2023

by ALOK_RAJ

1 Answer

1 Vote

132 Views

ALOK_RAJ Asked Aug 19, 2023

109 views

5g of K2SO4 was dissolved in water to prepare 250 ml of solution. what volume of this solution should be used so that 2.33g of BaSO4 may be precipitated from BaCl2 solution.

ALOK_RAJ Asked Aug 19, 2023

by ALOK_RAJ

1 Answer

0 Votes

109 Views

Barjes Yadav Asked Feb 22

34 views

A hockey ball of mass 200 g travelling at 10 m s-¹ is struck by a hockey stick so as to return it along its original path with a velocity at 5 m s-¹. Calculate the change of momentum occurred in the motion of the hockey ball by the force applied by the hockey stick.

Barjes Yadav Asked Feb 22

by Barjes Yadav

1 Answer

0 Votes

34 Views

Aayush Asked Feb 1

29 views

Chemical (A) is used for water softening to remove temporary hardness. (A) reacts with Na2CO3 to generate caustic soda. When CO2 is bubbled through (A), it turns cloudy.

Aayush Asked Feb 1

by Aayush

1 Answer

0 Votes

29 Views

ASK DOUBTS

When a solution containing 50 gm ethylene glycol in 200 gm water is cooled to –9.3°C, the amount of ice separated out is —

0 Comments

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 Comments

Please log in or register to add a comment.

RELATED DOUBTS

CATEGORIES

POPULAR TAGS