A solution is prepared by dissolving 11.10 g of an unknown non-electrolyte solute in 78.64 g...
A solution is prepared by dissolving 11.10 g of an unknown non-electrolyte solute in 78.64 g of cyclohexane. The freezing point of the solution is found to be 2.06 oC. What is the molar mass of the unknown solute in g/mol? Please report your answer with 3 significant figures. Answer g/mol
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A solution is prepared by dissolving 11.10 g of an unknown
non-electrolyte solute in 78.64 g...
A solution is prepared by dissolving 0.107 g of an unknown non-electrolyte in 88.1 g of...
A solution is prepared by dissolving 0.107 g of an unknown non-electrolyte in 88.1 g of camphor. The freezing point of the solution was measured to be 178.0�C. What is the molecular weight of the compound? (The freezing point of pure camphor is 179.5�C and kf= 40�C/m)?
A solution is prepared by dissolving 3.04 g of an unknown nonelectrolyte in 16.00 g of...
A solution is prepared by dissolving 3.04 g of an unknown nonelectrolyte in 16.00 g of cylcohexane (tf = 6.6 oC and kf = 20.0 oC/m). What is the molar mass of the unknown compound if the solution has a freezing point of -6.7 oC? Please see https://youtu.be/lwWZ5hdB61M for assistance. Mm = g/mol
A solution containing 1.00 g of an unknown non-electrolyte liquid and 9.00 g water has a...
A solution containing 1.00 g of an unknown non-electrolyte liquid and 9.00 g water has a freezing point of -3.33 oC. The Kf = 1.86 oC/m for water. Calculate the molar mass of the unknown liquid, in g/mol.
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go...
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go acetic acid at 25 degree C froze at 14.95degreeC. Freezing point of the pure acetic acid is 16.90degreeC.Density of acetic acid is 1.05 g/ml. at 25 degree C. Answer the following and show your work in the space provided. Molality of sucrose solution = K_i of acetic acid = 93.42 g of an unknown non-volatile, non-electrolyte solute was dissolved in 850.g of acetic acid....
A cyclohexane (c-hex) solution is prepared by fully dissolving 9.11g of a newly synthesized organic compound...
A cyclohexane (c-hex) solution is prepared by fully dissolving 9.11g of a newly synthesized organic compound in 100.g cyclohexane. The freezing point of the solution is depressed by -5.80 oC from the normal freezing point of 6.55 oC for pure cyclohexane ( Kf,c-hex= 20.0 oC kg/mol , MWc-hex = 84.0 g/mol). (a) What is the molecular weight (molar mass) of the organic compound? (b) What is the vapor pressure of the cyclohexane for this solution at 298K?
3a. Calculate the molar mass (in g/mol) of an unknown 1:1 electrolyte if 0.482 g dissolved...
3a. Calculate the molar mass (in g/mol) of an unknown 1:1 electrolyte if 0.482 g dissolved in 223.1 mL of water at 74.75 °C has an osmotic pressure of 54.4 mmHg. R = 0.082058 L⋅atm⋅mol−1⋅K−1. 1.00 atm = 760 mmHg. Report your answer to THREE significant figures. 3b. Calculate the required mass of an unknown nonelectrolyte (ℳ = 131.5599 g/mol) dissolved in 140.1 g of solvent that gives a solution that boils at 36.04 °C. The boiling point of the...
A solution is made by dissolving 5.0g of a non-electrolyte in 102. g of water. The...
A solution is made by dissolving 5.0g of a non-electrolyte in 102. g of water. The boiling point of the resulting solution is 100.10°C. What is the molar mass of the non-electrolyte? (Kb(H2O)=0.51kg-°C/mol) A. 26 g/mol B. 1.2 x 103 C. 2.5 x 102 g/mol D. 46 g/mol E. 8.8 x 102 g/mol I keep getting 0.25, please show the steps!
A solution containing 0.050 g of an unknown electrolyte in 2.50 g of cyclohexane was found...
A solution containing 0.050 g of an unknown electrolyte in 2.50 g of cyclohexane was found to freeze at 5.1oC. what is the molar mass of unknown substance? Tf, Cyclohexane = 6.4oC, Kf = 20.2 oC/m
A solution containing 0.16 g of an unknown electrolyte in 2.50 g of cyclohexane was found...
A solution containing 0.16 g of an unknown electrolyte in 2.50 g of cyclohexane was found to freeze at 4.9 oC . What is the molar mass of the unknown substance?
The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kr=20.0. 0.142 g of an unknown...
The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kr=20.0. 0.142 g of an unknown solute is dissolved in 7.78 g of cyclohexane (C6H12). The freezing point of the solution was 3.35°C. Calculate the corresponding molar mass of the solute. g/mol 1 homework pts Submit Answer Tries 0/5 To the above solution a further 0.133 g of the unknown is dissolved. The freezing point of the resulting solution was 0.77°C. Calculate the corresponding molar mass of the solute. g/mol...
A solution made by dissolving 85.0 g f sucrose (Molar mass. 342.3 g/mol) in 515 go acetic acid at 25 degree C froze at 14.95degreeC. Freezing point of the pure acetic acid is 16.90degreeC.Density of acetic acid is 1.05 g/ml. at 25 degree C. Answer the following and show your work in the space provided. Molality of sucrose solution = K_i of acetic acid = 93.42 g of an unknown non-volatile, non-electrolyte solute was dissolved in 850.g of acetic acid....
The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kr=20.0. 0.142 g of an unknown solute is dissolved in 7.78 g of cyclohexane (C6H12). The freezing point of the solution was 3.35°C. Calculate the corresponding molar mass of the solute. g/mol 1 homework pts Submit Answer Tries 0/5 To the above solution a further 0.133 g of the unknown is dissolved. The freezing point of the resulting solution was 0.77°C. Calculate the corresponding molar mass of the solute. g/mol...
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