The change in boiling point for a solution does NOT depend on: choose one: molecular mass...
The change in boiling point for a solution does NOT depend on: choose one:
molecular mass of solute
size of solute particles
chemical identity of the solute
all of the above
Homework Answers
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The change in boiling point for a solution does NOT depend on:
choose one:
molecular mass...
Colligative properties, such as boiling point elevation, depend on the number of dissolved particles in solution....
Colligative properties, such as boiling point elevation, depend on the number of dissolved particles in solution. For nonelectrolytes, no dissociation occurs, and so you can use the number of moles of solute to calculate both molality and molarity. In contrast, electrolytes dissociate, and therefore the molality and molarity must be calculated based on the number of moles of dissociated particles or ions. There are two ions per formula unit of NaCl. Therefore, we would expect the freezing-point depression ΔTf of...
molecular weight moles of solute kg owater insolution molality of solution change in freezing point Naci...
molecular weight
moles of solute
kg owater insolution
molality of solution
change in freezing point
Naci KCI CaCl, Initial Freezing Point of Water Mass of water Mass of Solute Molecular Weight of solute moles of solute kg of water in solution molality of solution Final Freezing Point of solution Change in Freezing Point kr from part A i for the solute(theoretical) i for the solute(experimental) 9 9 9 g/mole g/ mole mole mole kal kg m m -31°C 3 °C...
Which of the following regarding colligative properties of a solution is NOT correct? a. The temperature...
Which of the following regarding colligative properties of a solution is NOT correct? a. The temperature range over which a solution remains liquid is larger than that of the pure solvent due to the presence of solute particles. Cb. Vapor pressure reduction is a colligative property. c. Colligative properties depend on the concentration of the particles dissolved in the solvent. Cd. The freezing point of a solution increases as the concentration of solute increases. e. The change in the boiling...
9) An increase in the temperature of a solution usually A) increases the boiling point. B)...
9) An increase in the temperature of a solution usually A) increases the boiling point. B) increases the solubility of a gas in the solution. C) increases the solubility of a solid solute in the solution. D) decreases the solubility of a solid solute in the solution. E) decreases the solubility of a liquid solute in the solution. 10) The solubility of Kl is 50 g in 100 g of H20 at 20°C. If 110 grams of Kl are added...
At what temperature in OC, will a 2.42msolution of ethanol in water freeze? Kfpwater=1.858OC/m Do NOT...
At what temperature in OC, will a 2.42msolution of ethanol in water freeze? Kfpwater=1.858OC/m Do NOT write units with your answer!!! If 11.57 of an unknown covalent compound is placed in 100.0mL of water. The solution boils at 101.182oC, what is the molar mass of the covalent compound in g/mol ? Kbpwater=0.512OC/m Density of water is 1.00g/mL. Do NOT write units with your answer!!! If 7.29 of an unknown covalent compound is placed in 100.0mL of water. The solution boils at...
Part B. Initial Freezing Point of Water Mass of water Mass of Solute Molecular Weight of...
Part B. Initial Freezing Point of Water Mass of water Mass of Solute Molecular Weight of solute moles of solute kg of water in solution molality of solution Final Freezing Point of solution Change in Freezing Point kr from part A i for the solute(theoretical) i for the solute(experimental) NaCl 0°C 10.0 g 0.58 9 g/mole mole kg KCI oºch 10.0 g 0.75 g g/mole mole kg CaCl2 0°C 10.09 1.11 g g/mole mole kg m -5.6°C °c C/m -3.7°C...
An electric field at a spatial point does NOT depend on: (Choose all the answers) a....
An electric field at a spatial point does NOT depend on: (Choose all the answers) a. the distance from the source of the electric field b. the kinetic energy of test charge c. the charge distribution d. the direction of the point from the source e. the charge carried by a test charge
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For thi...
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For this sentence enter: increase & decrease) When a nonvolatile solute is dissolved in water it wil the the freezing point of this solution with respect to pure water. boiling point and Osmosis is a phenomenon that can be observed when two aqueous solutions of different are in contact membrane. If only water molecules can pass through this membrane, but...
What is the relationship between the moles of solute and the mass of solute? Rewrite the molality expression in terms o...
What is the relationship between the moles of solute and the
mass of solute?
Rewrite the molality expression in terms of grams and molecular
weight.
Background:
Properties that depend on the concentration of particles in solution are called colligative properties. The number of particles in a solvent can affect the freezing or boiling point of solvent. To express the effect of concentration on freezing point or boiling point, molality is used in place of molarity. Molality (m) is the number...
If a solution is 32% potassium chloride by mass, what mass of potassium chloride does it...
If a solution is 32% potassium chloride by mass, what mass of potassium chloride does it contain? What does the rate of dissolving a solid solute depend on?
molecular weight
moles of solute
kg owater insolution
molality of solution
change in freezing point
Naci KCI CaCl, Initial Freezing Point of Water Mass of water Mass of Solute Molecular Weight of solute moles of solute kg of water in solution molality of solution Final Freezing Point of solution Change in Freezing Point kr from part A i for the solute(theoretical) i for the solute(experimental) 9 9 9 g/mole g/ mole mole mole kal kg m m -31°C 3 °C...
Which of the following regarding colligative properties of a solution is NOT correct? a. The temperature range over which a solution remains liquid is larger than that of the pure solvent due to the presence of solute particles. Cb. Vapor pressure reduction is a colligative property. c. Colligative properties depend on the concentration of the particles dissolved in the solvent. Cd. The freezing point of a solution increases as the concentration of solute increases. e. The change in the boiling...
9) An increase in the temperature of a solution usually A) increases the boiling point. B) increases the solubility of a gas in the solution. C) increases the solubility of a solid solute in the solution. D) decreases the solubility of a solid solute in the solution. E) decreases the solubility of a liquid solute in the solution. 10) The solubility of Kl is 50 g in 100 g of H20 at 20°C. If 110 grams of Kl are added...
Part B. Initial Freezing Point of Water Mass of water Mass of Solute Molecular Weight of solute moles of solute kg of water in solution molality of solution Final Freezing Point of solution Change in Freezing Point kr from part A i for the solute(theoretical) i for the solute(experimental) NaCl 0°C 10.0 g 0.58 9 g/mole mole kg KCI oºch 10.0 g 0.75 g g/mole mole kg CaCl2 0°C 10.09 1.11 g g/mole mole kg m -5.6°C °c C/m -3.7°C...
QUESTION 9 14 pe that only depend on the Colligative properties refer to properties of of but not on their (For this sentence enter: increase & decrease) When a nonvolatile solute is dissolved in water it wil the the freezing point of this solution with respect to pure water. boiling point and Osmosis is a phenomenon that can be observed when two aqueous solutions of different are in contact membrane. If only water molecules can pass through this membrane, but...
What is the relationship between the moles of solute and the
mass of solute?
Rewrite the molality expression in terms of grams and molecular
weight.
Background:
Properties that depend on the concentration of particles in solution are called colligative properties. The number of particles in a solvent can affect the freezing or boiling point of solvent. To express the effect of concentration on freezing point or boiling point, molality is used in place of molarity. Molality (m) is the number...
If a solution is 32% potassium chloride by mass, what mass of potassium chloride does it contain? What does the rate of dissolving a solid solute depend on?
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