Table of Contents
What is the freezing point of an aqueous solution that boils at 102.5 ∘ C?
This problem has been solved! What is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.5°C? For water Kf = 1.86°C/m and Kb = 0.52°C/m.
What is the freezing point of an aqueous solution?
Freezing point of an aqueous solution is −0.
What is the boiling point of an aqueous solution which has a freezing point of?
1, the molal boiling point elevation constant for water is 0.51°C/m.Boiling Point Elevation. Solvent water Boiling Point (°C) 100.00 K b (°C/m) 0.51 Freezing Point (°C) 0.00 K f (°C/m) 1.86.
What is the boiling point of an aqueous solution that freezes at C?
Hence the correct answer is option (D) i.e. an aqueous solution freezes at -2.55 $^{0}C$ the boiling point is 100.7$^{0}C$.
What is the freezing point of an aqueous solution that boils at 104 C?
The freezing point of solution is -16.7 °C.
What is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.5 C for water KF 1.86 C M and KB 0.52 cm?
What is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.5°C? For water Kf = 1.86°C/m and Kb = 0.52°C/m.
Which solution has lowest freezing point?
Remember, the greater the concentration of particles, the lower the freezing point will be. 0.1mCaI2 will have the lowest freezing point, followed by 0.1mNaCl, and the highest of the three solutions will be 0.1mC6H12O6, but all three of them will have a lower freezing point than pure water.
Which solution will freeze at the highest temperature?
The highest freezing point will be the one with the lowest molality of particles of solute, the glucose solution; the next highest will be the Ca(NO3)2 solution; and the lowest freezing point will be the KCl solution.
Which solution has highest freezing point?
Hence, the highest freezing point is 0.1 m of NaCl solution.
Which Equimolal concentrated solution has highest freezing point?
The freezing point of equimolal soution will be highest for : B. Ca(No3)2. C. La(NO3)3. La(NO3)3will furnish four ions and thus will develop more lowering in freezing point where as glucose gives only one particle and thus lowering in freezing point is minimum.
Which are the Colligative properties?
Colligative properties include vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure.
Which of the following .1 M aqueous solution will have the lowest freezing point?
Sodium chloride gives two ions and potassium sulphate gives three ions per formula unit. Therefore, the effective number of particles is maximum in potassium sulphate, and it shows the maximum depression in freezing point.
How do you calculate freezing point?
The freezing point depression ∆T = KF·m where KF is the molal freezing point depression constant and m is the molality of the solute. Rearrangement gives: mol solute = (m) x (kg solvent) where kg of solvent is the mass of the solvent (lauric acid) in the mixture. This gives the moles of the solute.
Which will freeze at the lowest temperature?
Which will freeze at the lowest temperature? Ocean water has the highest concentration of solute, so it will have the greatest freezing point depression, and therefore freeze at the lowest temperature of the three.
What factors affect freezing point?
Factors That Affect the Freezing Point Types of molecules: The types of molecules that constitute a liquid affect its freezing point. On the other hand, if the intermolecular forces of attraction between molecules of the liquid are weak, then the freezing point becomes low.
Which has maximum freezing point 6g urea?
Value of van’t Hoff factor is least for urea solution, so there will be least depression in freezing point i.e. maximum freezing point.
Which has the highest freezing point at 1 atm?
As \[FeC{l_3}\] solution comprises the maximum number of solute particles, its freezing point will be the lowest and sugar solution comprises the minimum number of solute particles so its freezing point will be the highest. So, the correct answer is Option B.
Which has the highest freezing point * 1 point?
1M glucose solution has the highest freezing point because it has lower ΔTf(ΔTf=Tf∘+ΔTf) since it does not undergo dissociation to increase the number of particles.
What are the 5 colligative properties?
These colligative properties include vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure.
Why is molality used in colligative properties?
Colligative properties are dependent on the number of particles present in the solution. We know that molality is the kilograms of solvent which remains unchanged with respect to temperature. Therefore, molality is used in colligative properties.
What is abnormal colligative property?
Answer: Abnormal colligative property: When the experimentally measured colligative property of a solution is different from that calculated theoretically by the van’t Hoff equation or by the laws of osmosis, then the solution is said to have abnormal colligative property.
What is KF formula?
To calculate the freezing point depression constant, or Kf, you’ll need the equation: delta Tf = Kfcm where cm is the molal concentration of the solution.
What is freezing and boiling point?
The Fahrenheit scale defines the freezing point of water as 32°F and the boiling point as 212°F. The Celsius scale sets the freezing point and boiling point of water at 0°C and 100°C respectively.
What is the normal freezing point?
Ordinarily, the freezing point of water and melting point is 0 °C or 32 °F. The temperature may be lower if supercooling occurs or if there are impurities present in the water which could cause freezing point depression to occur. Under certain conditions, water may remain a liquid as cold as -40 to -42°F!Oct 8, 2019.
Does freezing point depends on pressure?
Changes in pressure can raise or lower the freezing point of a substance. Generally, pressures lower than 1 atmosphere lower the temperature at which a substance freezes, but for water, a higher pressure gives a lower freezing point.
What affects freezing and boiling point?
Freezing and Boiling. Lowering the vapor pressure of a substance has an obvious effect on boiling point; the boiling point goes up. Thus, the temperature of the boiling point must be increased. Another consequence of lowered vapor pressure is a decrease in freezing point.
Which has the lowest freezing point at 1 atm pressure?
Answer: The lowest boiling point at 1 atm pressure is 0.1 M Kcl.
What is the freezing point of an aqueous solution at 1 atm?
The freezing point of an aqueous solution of urea (H2NCONH2) at normal pressure (1 atm) is 273.06 K.
What will be the freezing point of a 0.5 M KCL solution?
372oC.
