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molal
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The freezing point and boiling point for matter is a constant Explain this meaning of constant?
It means that the freezing or melting points do not change, that they are always the same, depending on the type of matter. For eg. the melting point or freezing point of water is 0○ Celsius and the boiling point is always 100○C.
What is the change in the boiling point and freezing point of 500 grams of water if 45 grams of glucose C6H12O6 were dissolved in it?
This quantity is equivalent to 90 g glucose / kg water = 0.50 mole particles of solute / kg water, so with a 'molar cryoscopic constant' for water of -1.86 oC/kgthis lowers the freezing point to -0.93 oC.
What is happening with kf?
Kf stands for the freezing point constant of the solvent.
What temperature is manganese at freezing?
The freezing point of sodium permanganate is 36 degrees Celsius. This is an inorganic compound that has the chemical formula of NaMnO4. Its molar mass is 141.9254 grams per mole.
What are freezing and boiling point of 0.1 molar solution of CaCl2 in water?
The influence is extremely low - apprpox. 0,05 0C.
Can the freezing point be lower than its boiling point in a constant pressure?
At a constant pressure, the freezing point is always going to be lower than the boiling point.
What is the freezing point depression constant for naphthalene?
The freezing point depression constant for Naphthalene is 6.9 degrees Celsius/mhttp://en.wikipedia.org/wiki/Freezing-point_depression
The freezing point and boiling point for matter is a constant Explain this meaning of constant?
It means that the freezing or melting points do not change, that they are always the same, depending on the type of matter. For eg. the melting point or freezing point of water is 0○ Celsius and the boiling point is always 100○C.
The solution has a freezing point of -2.79 . The freezing point depression constant for water is 1.86 K m-1. What is the nitrate concentration in the solution?
The solution has a freezing point of 2.79 and this is the frezzing point of mercury
Constant freezing point of acetone?
The freezing point of acetone at sea level is -94.7 C, -138.46 F, 178.45 k.
What is the change in the boiling point and freezing point of 500 grams of water if 45 grams of glucose C6H12O6 were dissolved in it?
This quantity is equivalent to 90 g glucose / kg water = 0.50 mole particles of solute / kg water, so with a 'molar cryoscopic constant' for water of -1.86 oC/kgthis lowers the freezing point to -0.93 oC.
What is the trend for freezing point?
The freezing point of a given substance, under constant pressured does not change so there is no trend.
What is happening with kf?
Kf stands for the freezing point constant of the solvent.
What temperature is manganese at freezing?
The freezing point of sodium permanganate is 36 degrees Celsius. This is an inorganic compound that has the chemical formula of NaMnO4. Its molar mass is 141.9254 grams per mole.
If each molecule of unknown had dissociated into two ions in the lauric acid solution what effect would there have been on the freezing point depression of the solution?
Freezing point depression is more significant if a molecule dissociates. It is the molality of the solution of osmotically active particles and freezing/melting point constant (k) of the solvent that determine the magnitude of freezing point depression. In these experiments, we are usually measuring freezing point depression to determine molar mass of the unknown solute. The calculated molar mass would be would be lower than the actual mass of the intact molecule. If you have half as many intact particles, the intact molecular weight must be double to obtain the same formula ratio: MW = g / mol ... since mol actually less of the intact particle, MW must be more
What are freezing and boiling point of 0.1 molar solution of CaCl2 in water?
The influence is extremely low - apprpox. 0,05 0C.
What are the Freezing-point depression constant of benzoic acid and salicylic acid?
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