The largest value in the lowering of the freezing point of water will be observed for...
The largest value in the lowering of the freezing point of water will be observed for a 0.01 M aqueous solution of:
(A) NaCl
(B) CaCl2
(C) Ethylene glycol (HOCH2CH2OH)
(D) Glucose (C6H12O6)
(E) Sucrose (C12H22O11)
Homework Answers
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The largest value in the lowering of the freezing point of water
will be observed for...
Question 20. Calculate the freezing point depression and the freezing point of a 1.7 m ethylene...
Question 20. Calculate the freezing point depression and the freezing point of a 1.7 m ethylene glycol solution [-3.2 °C] Question 21. Calculate the freezing point of a 2.6 m sucrose solution. I - 4.8°C] Question 22. Calculate the boiling point elevation and the boiling point of 1.7 methylene glycol solution. [100. 87°C] Question 23. Calculate the boiling point of a 3.5 m glucose solution. [ 101.8°C]
Which aqueous solution will have the lowest freezing point? (a) 0.050 m CaCl2 (b) 0.15 m...
Which aqueous solution will have the lowest freezing point? (a) 0.050 m CaCl2 (b) 0.15 m NaCl (c) 0.10 m HCl (d) 0.050 m CH3COOH (e) 0.20 m C12H22O11
Solute Mass(g) Observed Freezing Point (Celcius) m i Theoretical Freezing Point (Celcius) NaCl 2.94g -1 CaCl2...
Solute Mass(g) Observed Freezing Point (Celcius) m i Theoretical Freezing Point (Celcius) NaCl 2.94g -1 CaCl2 * 2H20 7.37g 0 C12H22O11 17.14g 0.5 100.0g of pure ice water freezing point 0.5 C Final Freezing Point -3 Your solvent mass should be the mass of the water and the mass of the ice You should use your observed freezing point of pure water to adjust the values for the observed freezing point of the solution, that will make comparing your observed...
Which aqueous solution has the lowest freezing point? A. 8.758.75 m sucrose, C12H22O11C12H22O11 B. 8.758.75 m...
Which aqueous solution has the lowest freezing point? A. 8.758.75 m sucrose, C12H22O11C12H22O11 B. 8.758.75 m ethanol, C2H6OC2H6O C. 8.758.75 m ethylene glycol, C2H6O2C2H6O2 D. All three solutions have the same freezing point.
Some ethylene glycol, HOCH2CH2OH , is added to your car’s cooling system along with 5.0 kg of water. If the freezing po...
Some ethylene glycol, HOCH2CH2OH , is added to your car’s cooling system along with 5.0 kg of water. If the freezing point of the water–glycol solution is −13.0 °C, what mass of HOCH2CH2OH must have been added? (Kfp for H2O is −1.86 °C/m.)
To prepare an anti-freezing agent, you need to dissolve ethylene glycol (0.75 mol) into water
4. To prepare an anti-freezing agent, you need to dissolve ethylene glycol (0.75 mol) into water. (35.25 mol) Calculate the vapor pressure and vapor pressure lowering of this solution (P° = 92.5 Torr). 5. What are the boiling and freezing points of the aqueous solution when ethylene glycol (16.1 mol) dissolved into water (4.5 kg), respectively? Assume the pressure is I atm.
Molal Boiling-Point-Elevation and Freezing-Point-Depression Solvent Normal Boiling Point (∘C) Kb (∘C/m) Normal Freezing Point (∘C) Kf...
Molal Boiling-Point-Elevation and Freezing-Point-Depression Solvent Normal Boiling Point (∘C) Kb (∘C/m) Normal Freezing Point (∘C) Kf (∘C/m) Water, H2O 100.0 0.51 0.0 1.86 Benzene, C6H6 80.1 2.53 5.5 5.12 Ethanol, C2H5OH 78.4 1.22 -114.6 1.99 Carbon tetrachloride, CCl4 76.8 5.02 -22.3 29.8 Chloroform, CHCl3 61.2 3.63 -63.5 4.68 Part E freezing point of 2.02 g KBr and 4.84 g glucose (C6H12O6) in 187 g of water Part F boiling point of 2.02 g KBr and 4.84 g glucose (C6H12O6) in...
8. Which aqueous solution will have the lowest freezing point? A) 0.60 molal sucrose B) 0.50...
8. Which aqueous solution will have the lowest freezing point? A) 0.60 molal sucrose B) 0.50 molal KF C) 0.60 molal glucose D) 0.24 molal Fel3 9, If "A" contains 2% NaCl and is separated by a semipermeable membrane occur? A) NaCI will flow from "A" to "B". B) NaCI will flow from "B" to "A". C) Water will flow from "A" to "B". D) Water will flow from "B" to "A". E) none of the above from "B which...
An aqueous sucrose (C12H22O11) solution of unknown concentration is found to have a freezing point of...
An aqueous sucrose (C12H22O11) solution of unknown concentration is found to have a freezing point of –0.912°C. What is the normal boiling point and the partial pressure (in torr) of water at 25°C of this solution? Kb (H2O) = 0.51°C/m; P°(H2O) = 23.800 torr at 25°C.
What is the freezing point of a 4.19 molal aqueous solution of ethylene glycol, a nonvolatile,...
What is the freezing point of a 4.19 molal aqueous solution of ethylene glycol, a nonvolatile, nonionizing material? Freezing point of water is 0.00 ºC.
Question 20. Calculate the freezing point depression and the freezing point of a 1.7 m ethylene glycol solution [-3.2 °C] Question 21. Calculate the freezing point of a 2.6 m sucrose solution. I - 4.8°C] Question 22. Calculate the boiling point elevation and the boiling point of 1.7 methylene glycol solution. [100. 87°C] Question 23. Calculate the boiling point of a 3.5 m glucose solution. [ 101.8°C]
8. Which aqueous solution will have the lowest freezing point? A) 0.60 molal sucrose B) 0.50 molal KF C) 0.60 molal glucose D) 0.24 molal Fel3 9, If "A" contains 2% NaCl and is separated by a semipermeable membrane occur? A) NaCI will flow from "A" to "B". B) NaCI will flow from "B" to "A". C) Water will flow from "A" to "B". D) Water will flow from "B" to "A". E) none of the above from "B which...
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