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8. 4.64 g of a nonelectrolyte is dissolved in 185.0 g naphthalene. The resulting solution freezes...
32. (8 points) If a 25.0-g sample of a nonelectrolyte is dissolved in 145.0 g of...
32. (8 points) If a 25.0-g sample of a nonelectrolyte is dissolved in 145.0 g of water, the resulting solution will freeze at -0.89°C. What is the molar mass of the nonelectrolyte? (Kfp for water is 1.858°C/m.)
Determine the Freezing Point of a Solution Question 3.4 g of a nonelectrolyte dissolved in 78.3...
Determine the Freezing Point of a Solution Question 3.4 g of a nonelectrolyte dissolved in 78.3 g of water produces a solution that freezes at -4.5'C. what is the molar mass of this solute? K1.86 C Your answer should have tJ6 significant figures. Provide your answer below:
1) An aqueous solution containing 15.9 g of an unknown molecular (nonelectrolyte) compound in 103.0 g...
1) An aqueous solution containing 15.9 g of an unknown molecular (nonelectrolyte) compound in 103.0 g of water was found to have a freezing point of -1.5 ∘C. Calculate the molar mass of the unknown compound. b) Determine the required concentration (in percent by mass) for an aqueous ethylene glycol (C2H6O2) solution to have a boiling point of 109.3 ∘C. c) What mass of salt (NaCl) should you add to 1.90 L of water in an ice cream maker to...
1.When a solution is made from 32.2 g of an unknown nonelectrolyte dissolved in 151 g...
1.When a solution is made from 32.2 g of an unknown nonelectrolyte dissolved in 151 g of solvent, the solution boils at 83.44 °C. The boiling point of the pure solvent and its Kb are 79.31 °C and 4.47 °C/m, respectively. Calculate the molar mass of the unknown electrolyte in g/mol. 2. Calculate the molar mass (in g/mol) of an unknown nonelectrolyte if 0.898 g dissolved in 268.7 mL of water at 30.13 °C has an osmotic pressure of 68.1...
The freezing point of a solution of 1.104 g of an unknown nonelectrolyte dissolved in 36.81...
The freezing point of a solution of 1.104 g of an unknown nonelectrolyte dissolved in 36.81 g of benzene is 1.08°C. Pure benzene freezes at 5.48°C and its Kf value is 5.12°C/m. What is the molecular weight of the compound?
A solution is created by dissolving 125 grams of Glucose (C6H12O6) a nonvolatile nonelectrolyte in 1150...
A solution is created by dissolving 125 grams of Glucose (C6H12O6) a nonvolatile nonelectrolyte in 1150 mL of water at 25°C. Calculate the vapor pressure (torr) of the resulting solution. Assume that the density of water at 25°C is 1.0 g/mL and that the vapor pressure of pure water is 23.76 torr..
A 83.5 g sample of a nonelectrolyte is dissolved in 250.1 g of water. The solution...
A 83.5 g sample of a nonelectrolyte is dissolved in 250.1 g of water. The solution is determined to have a boiling point of 102.3 °C. What is the molar mass of the compound? (Kb for water is 0.510 °C/m).
29) A solution is 0.0433 m LiF. What is the molarity of the solution if the...
29) A solution is 0.0433 m LiF. What is the molarity of the solution if the density is 1.10 g/mL? A) 0.0441 M B) 0.0390 M C) 0.0476 M D) 0.0417 M E) 0.0519 M 30) Determine the freezing point depression of a solution that contains 30.7 g glycerin (C3H8O3, molar mass =92.09 g/mol) in 376 mL of water. Some possibly useful constants for water are Kf 1.86°C/m and Kb 0.512°C/m. A) 3.33°C B) 0.654°C C) 1.65°C D) 4.95°C E)...
When 4.65 g of a nonelectrolyte solute is dissolved in water to make 385 mL of...
When 4.65 g of a nonelectrolyte solute is dissolved in water to make 385 mL of solution at 22 °C, the solution exerts an osmotic pressure of 923 torr. What is the molar concentration of the solution? How many moles of solute are in the solution? What is the molar mass of the solute?
When 4.57 g of a nonelectrolyte solute is dissolved in water to make 835 mL of...
When 4.57 g of a nonelectrolyte solute is dissolved in water to make 835 mL of solution at 23 °C, the solution exerts an osmotic pressure of 869 torr. What is the molar concentration of the solution? concentration: How many moles of solute are in the solution? moles of solute: mol What is the molar mass of the solute? molar mass: g/mol
32. (8 points) If a 25.0-g sample of a nonelectrolyte is dissolved in 145.0 g of water, the resulting solution will freeze at -0.89°C. What is the molar mass of the nonelectrolyte? (Kfp for water is 1.858°C/m.)
Determine the Freezing Point of a Solution Question 3.4 g of a nonelectrolyte dissolved in 78.3 g of water produces a solution that freezes at -4.5'C. what is the molar mass of this solute? K1.86 C Your answer should have tJ6 significant figures. Provide your answer below:
29) A solution is 0.0433 m LiF. What is the molarity of the solution if the density is 1.10 g/mL? A) 0.0441 M B) 0.0390 M C) 0.0476 M D) 0.0417 M E) 0.0519 M 30) Determine the freezing point depression of a solution that contains 30.7 g glycerin (C3H8O3, molar mass =92.09 g/mol) in 376 mL of water. Some possibly useful constants for water are Kf 1.86°C/m and Kb 0.512°C/m. A) 3.33°C B) 0.654°C C) 1.65°C D) 4.95°C E)...
When 4.57 g of a nonelectrolyte solute is dissolved in water to make 835 mL of solution at 23 °C, the solution exerts an osmotic pressure of 869 torr. What is the molar concentration of the solution? concentration: How many moles of solute are in the solution? moles of solute: mol What is the molar mass of the solute? molar mass: g/mol
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