A solution contains 3.60 g of a nonvolatile pure hydrocarbon in 95 g acetone. The boiling...
What is the boiling point of a solution produced by adding 650 g of cane sugar (molar mass 342.3 g/mol) to 1.7 kg of water? For each mole of nonvolatile solute, the boiling point of 1 kg of water is raised 0.51 ∘C.
What is the boiling point elevation of a solution containing 17.1 g of sucrose in 100.0 g of water? The molal elevation constant of water is 0.512°C/m and the molar mass of sucrose is 342 g/mol.
1.A solution that contains 15.581 grams of benzene (molar mass = 78.1 g/mol) in 420 g of cyclohexane freezes at a temperature 9.50 ºC below the freezing point of pure cyclohexane. Calculate the molar freezing point depression constant, Kf, for cyclohexane. 2. The molar boiling point elevation constant for water is 0.512 ºC/m. What is the boiling point of a solution containing 673 g of water and 78.0 g of CaCl2? 3. A solution containing 32.0 g of an unknown...
In a boiling point elevation experiment, the number of mol of a nonionizing, nonvolatile solute dissolved in benzene is 0.00176 mol. The mass of the solute is 3.55g. What is the approximate molar mass of the nonionizing, nonvolatile substance? Consider amu equivalent to g / mol (molar mass ) A. 20,000 amu B. 20 amu C. 2000 amu D. 500 amu
the boiling point elevation of a solution containing sucrose and water is .256c . The molal elevation constant of water is .512c/m and the molar mass of sucrose is 342 g/mol. What is the molality
Instructor: Dr. Anna Toy-pal 8. (15 pts) A solution contains a 0.250 g of an unknown nonvolatile nonelectrolyte dissolved in 40.0 g of CCl, as the solvent. The boiling point of the solution was 0.357 °C higher than that of the pure solvent. Given Ks - 5.02 "C/m, determine the molar mass of the unknown substance. _g/mol Molar mass unknown substance = 40.0g CCl4 molccly = 2.53 molicly! 153,81 g CCl4 ATb=ikbm kb = 502 Un 0250 g unt solute...
Assuming ideal solution behavior, what is the boiling point of a solution of 5.31 g of Iz in 75.5 g of benzene, assuming the lis nonvolatile? Kb=2.53°C/molal K= 5.12°C/molal boiling point of benzene is normally 80.1°C at 1 atm freezing point of benzene is normally 5.5°C at 1 atm Enter up to four decimal places, canvas does not recognize sig figs.
What is the freezing point and boiling point in Celsius of a solution 400 g of ethylene glycol (MW=62 g/mol) dissolved in 500 g of water? The molal freezing point depression constant for water is 1.86 C/m The molal boiling point elevation constant of water is 0.512 C/m Please explain steps
1. When 1.00 g of an unknown, nonvolatile, nondissociating solute is dissolved in 50.0 g of camphor, the solution melts at 173.4 C. If pure camphor melts at 178.4 C and has Kf = -37.7 K kg mol', what is the approximate molar mass of the unknown solute?
2. A solution is prepared by dissolving 7.00 g of glycerin (C3H8O3) in 201 g of ethanol (C2H5OH). The freezing point of the solution is __________°C. The freezing point of pure ethanol is -114.6 °C at 1 atm. The molal-freezing-point-depression constant (Kf) for ethanol is 1.88 °C/m. The molar masses of glycerin and of ethanol are 92.1 g/mol and 46.1 g/mol, respectively.