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A chemist dissolves an unknown solute into 1000 grams of water and then measures the freezing point to be and ndash2.88 and degC. What can be determined from this data and from known constants for wat?
From the measured freezing point of -2.88°C, we can determine the molality of the solute using the freezing point depression formula: ΔTf = i * Kf * m, where ΔTf is the change in freezing point, Kf is the cryoscopic constant for water (1.86°C kg/mol), and m is the molality of the solution. The change in freezing point (ΔTf) from the normal freezing point of water (0°C) is 2.88°C, allowing us to calculate the molality of the unknown solute. Additionally, if the van't Hoff factor (i) is known or can be assumed (e.g., for a non-dissociating solute, i = 1), we can further analyze the properties of the solute.
Describe how properties change after a solvent dissolves a solute?
When a solute dissolves in a solvent, the physical and chemical properties of the solution can change significantly. For instance, the boiling and freezing points of the solvent may be altered, a phenomenon known as boiling point elevation and freezing point depression. Additionally, the solution's conductivity can increase if the solute dissociates into ions, such as in the case of salt in water. Overall, the resulting solution exhibits properties distinct from those of the individual components.
Does solute effect the freezing point of water?
the temperature at which the solution freezes is lowered.
A solution of glucose in water has a freezing point that is?
A solution of glucose in water has a freezing point that is lower than that of pure water due to the presence of solute particles, which disrupt the formation of ice. This phenomenon is known as freezing point depression. The extent of the freezing point depression depends on the concentration of glucose in the solution, as more solute particles lead to a greater decrease in the freezing point.
Is the water solute?
Solvent. What is dissolves is the solute.
What evaporate faster salt water or regular water?
Regular water evaporates faster because salt or any kind of solute (the substance that dissolves) raises the boiling point and lowers the freezing point.
A chemist dissolves an unknown solute into 1000 grams of water and then measures the freezing point to be and ndash2.88 and degC. What can be determined from this data and from known constants for wat?
From the measured freezing point of -2.88°C, we can determine the molality of the solute using the freezing point depression formula: ΔTf = i * Kf * m, where ΔTf is the change in freezing point, Kf is the cryoscopic constant for water (1.86°C kg/mol), and m is the molality of the solution. The change in freezing point (ΔTf) from the normal freezing point of water (0°C) is 2.88°C, allowing us to calculate the molality of the unknown solute. Additionally, if the van't Hoff factor (i) is known or can be assumed (e.g., for a non-dissociating solute, i = 1), we can further analyze the properties of the solute.
Why does the freezing point of water lower when solute is added?
the solute gets in the way of the water turning to ice
Describe how properties change after a solvent dissolves a solute?
When a solute dissolves in a solvent, the physical and chemical properties of the solution can change significantly. For instance, the boiling and freezing points of the solvent may be altered, a phenomenon known as boiling point elevation and freezing point depression. Additionally, the solution's conductivity can increase if the solute dissociates into ions, such as in the case of salt in water. Overall, the resulting solution exhibits properties distinct from those of the individual components.
Does solute effect the freezing point of water?
the temperature at which the solution freezes is lowered.
What is the freezing point depression constant for water and how does it affect the freezing point of water?
The freezing point depression constant for water is 1.86 degrees Celsius per molal. This means that for every mole of solute added to water, the freezing point of water decreases by 1.86 degrees Celsius. The presence of solute particles disrupts the formation of ice crystals, lowering the freezing point of the solution compared to pure water.
Is salt water colder than fresh water?
The freezing point of salted water is lower than the freezing point of pure water; this is a phenomenon known as freezing point depression when a solute exist in the solution.
A solution of glucose in water has a freezing point that is?
A solution of glucose in water has a freezing point that is lower than that of pure water due to the presence of solute particles, which disrupt the formation of ice. This phenomenon is known as freezing point depression. The extent of the freezing point depression depends on the concentration of glucose in the solution, as more solute particles lead to a greater decrease in the freezing point.
Is the water solute?
Solvent. What is dissolves is the solute.
Does the temperature must drop 0 C for water to freeze when a solute is dissolved in the water?
A solute added to water decreases the freezing point.
Solute dissolves more rapidly when?
solute dissolves more rapidly in hot water
What is the Relationship of solute concentration and solvent concentration?
These words are the two parts of dissolution. A solute is what is being dissolved, and a solvent is what dissolves it. The most universal solvent is water, which means that most solutes can be dissolved into it. A solute (e.g. sugar) is dissolved in a solvent (e.g. water) to make a solution - sugar solution
