if 52.2g of LiF is dissolved in 306g of water, what is the expected freezing point of the solution? (Use Kf of water)
if 52.2g of LiF is dissolved in 306g of water, what is the expected freezing point...
if 52.5 g of LiF is dissolved in 306 g of water, what is the expected freezing point of the solution? (Assume the van’t Hoff factor, i, for LiF is 2)
What is the expected freezing point of a 0.0750 m solution of LiBr in water? (Kf for water is 1.86 °C/m.)
What is the expected freezing point depression and freezing point of a 0.20m solution of the strong electrolyte calcium chloride, CaCl2? Kf = 1.86°C/m
What the true answers ? What is the expected freezing point of a 1.50 m solution of Na2S04 in water? Kf for water is 1.86°Cm A)-19°C 6-8.4°C C) -6.5°C D)-0.93°C
2. What is the freezing point of an aqueous solution containing 69.5g NaNO3 (MM=85.00g/mol) dissolved in 175g water? Kf=1.86°C/m for water and assume "ideal" behavior. 10. An RV antifreeze is an aqueous solution containing 5.68 M proplyene glycol (MM=76.09 g/mol). If the density of the antifreeze is 1.080 g/mL, what is the molality of the solution?
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)...
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?
The freezing point of water, H2O, is 0.000 °C at 1 atmosphere. Kf(water) = -1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 10.77 grams of the compound were dissolved in 268.4 grams of water, the solution began to freeze at -1.202 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound ?
The freezing point of water, H2O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 14.38 grams of the compound were dissolved in 227.9 grams of water, the solution began to freeze at -0.343 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound?
The freezing point of water, H2O, is 0.000 °C at 1 atmosphere. Kf(water) = 1.86 °C/m In a laboratory experiment, students synthesized a new compound and found that when 11.53 grams of the compound were dissolved in 218.3 grams of water, the solution began to freeze at -0.287 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound? ??? g/mol