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The ebullioscopic constant is a proportionality constant that relates the lowering of the vapor pressure of a solvent to the concentration of solute particles in the solution. It is specific to each solvent and is used in calculating the change in boiling point of a solvent when a nonvolatile solute is added. The formula for calculating the change in boiling point (∆Tb) is ∆Tb = i * K * m, where i is the van't Hoff factor, m is the molality of the solution, and K is the ebullioscopic constant.
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What are different NAME of constant r?
R may be the Rydberg constant or the gas constant.
Is motion with constant velocity an example of motion with constant acceleration?
Well, technically yes, and we even know the magnitude of the constant acceleration.If velocity is constant, that tells you that acceleration is zero, which sounds likea constant to us.
How can you say the sentence the man moves at constant speed in constant direction?
"The man's acceleration is zero." "The man's motion is uniform." "The man's velocity is constant."
Can you go around a curve with constant velocity?
Yes, it is. Trajectory also depends of direction of acceleration, not only it's magnitude. When you consider circular orbit, the agnitude of centripetal acceleration is constant, but the vector directions changes every moment to point constantly at the center.
Does the gravitational constant change over time or is it a constant value?
The gravitational constant, denoted as G, is considered to be a constant value in physics. It is a fundamental constant that is believed to remain the same over time and across the universe.
Is ebullioscopic constant as the boiling point elevation produced in one gram molecule of any solute dissolved in grams of solvent?
no
Does molal elevation constant depend on nature of solvent?
This is a colligative property which does not depend on the nature of solute is the molal boiling point elevation constant or ebullioscopic constant of the solvent.
What is the boiling point of a solution that contains 170g of sugar in 100 grams of water?
The boiling point of a solution can be calculated using the formula: ΔTb = i * Kf * m, where i is the van't Hoff factor, Kf is the ebullioscopic constant of the solvent, m is the molality of the solution in mol/kg, and ΔTb is the boiling point elevation. In this case, we would need additional information such as the van't Hoff factor of the sugar and the ebullioscopic constant of water to calculate the boiling point elevation accurately.
What is ebullioscopic method?
Ebullioscopic method is a physiochemical method to determine the molecular weight of compounds....."when a non volatile solute is added to pure solvent or liquid the boiling point of the pure solvent is increased and the elevation in the temperature is related to the molecular weight of solute"this is given by formula:M=1000Kew/(ΔTW)WHERE Ke is the molal elevation constant,w is the weight of solute, W is the weight of solvent and M is the molecular weight................................................irfan ali bughio from uni of sindh,,,,,,,,,allama i.i qazi institute of chemistry..ayaan622@yahoo.com
What is the boiling point of a 2.35 m solution of sodium sulfate?
The boiling point of a solution increases with the concentration of solute particles. To calculate the boiling point elevation, you can use the formula: ΔTb = i * Kf * m, where i is the van't Hoff factor (2 for sodium sulfate), Kf is the ebullioscopic constant, and m is the molality of the solution. If you have these values, you can calculate the boiling point elevation using this formula.
What is the boiling point of an aqueous solution that has a vapor pressure of 18.5 at 25 degrees Celsius?
The boiling point of an aqueous solution can be calculated using the formula: ΔT = iKbm, where ΔT is the boiling point elevation, i is the van't Hoff factor, Kb is the ebullioscopic constant, and m is the molality of the solution. Given the vapor pressure of 18.5 mmHg, you can determine the molality of the solution and then calculate the boiling point elevation.
What is the molar mass of acetic acid by elevation of boiling point method?
The molar mass of acetic acid can be determined using the elevation of boiling point method by measuring the change in boiling point of a solution of acetic acid relative to the boiling point of the pure solvent. By applying the equation ΔT = K_b * m, where ΔT is the change in boiling point, K_b is the ebullioscopic constant of the solvent, and m is the molality of the solution, the molar mass of acetic acid can be calculated using the formula MM = (RT2) / (K_b * ΔT), where MM is the molar mass of acetic acid, R is the gas constant, and T is the temperature in Kelvin.
What is the boiling point of a 2.86 m solution of ammonium nitrate NH4NO3 Assume that the solvent is water which has a Kb of 0.51ºC m and a boiling point of 100.0ºC?
To find the boiling point elevation of the solution, you can use the formula: ΔTb = i * Kb * m, where i is the van't Hoff factor, Kb is the ebullioscopic constant, and m is the molality of the solution. Plug in the values given and solve for ΔTb. Then, add this value to the boiling point of the solvent (100.0°C) to find the boiling point of the solution.
What is the constant equal to the ratio of the gas constant to the avogadro constant?
Boltzmanns constant
What is boiling point of 1 molar urea solution?
The boiling point of a 1 molar urea solution will be higher than the boiling point of pure water. Urea is a non-volatile solute that raises the boiling point of the solution through boiling point elevation. The exact boiling point elevation can be calculated using the formula: ΔTb = i * K_b * m, where i is the van't Hoff factor (1 for urea), K_b is the ebullioscopic constant of the solvent (water), and m is the molality of the solution.
Is the spring constant is constant on the moon?
no the spring constant is not constant on moon because there is no restoring force there
What is 2.71828182845904?
It is the e mathematical constant, Euler's constant.
