Kf for chloroform is 4.68 C/m: normal freezing point go chloroform is -63.5 C. Calculate the freezing point of a solution containing 750 g of chloroform CHCL3 and 85 g of a solute that has a molar mass of 154 g/mol..
Kf for chloroform is 4.68 C/m: normal freezing point go chloroform is -63.5 C. Calculate the...
please answer ASAP Kf for chloroform is 4.68 °C/m; normal freezing point of chloroform is -63.5°C. Calculate the freezing point of a solution containing 750 g of chloroform (CHC13) and 85.0 g of a solute that has a molar mass of 154 g/mol. Express your answer to 3 significant figures. Do NOT use scientific notation. Do not include a unit. You must include the negative sign in your answer!
Calculate the Freezing point of a solution containing 0.6 kg of chloroform, CHCL3, and 42.0 g of eucalptol, C10H18O. the normal freezing point of cholorform is (-63.5 c ) and the Kf IS 4.68 c/m
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...
Molar Mass of a Solute The freezing point of cyclohexane is 6.50°C. For cyclohexane solvent Kf=20.0. 0.147 g of an unknown solute is dissolved in 7.71 g of cyclohexane (C6H12). The freezing point of the solution was 3.38°C. Calculate the corresponding molar mass of the solute. g/mol 1homework pts Submit Answer Tries 0/5 To the above solution a further 0.139 g of the unknown is dissolved. The freezing point of the resulting solution was 0.85°C. Calculate the corresponding molar mass...
part c calculate the freezing/boiling point for 18.0 g of decane, C10H22, in 50.0 g CHCl3 part e calculate the freezing/boiling point for 0.48 mol ethylene glycol and 0.18 mol KBr in 166g H2O Carbon w orden TABLE 13.3 · Molal Boiling-Point-Elevation and Freezing-Point-Depression Constants Normal Boiling Normal Freezing Solvent Point ("C) K. (°C/m) Point (°C) K(°C/m) Water, H2O 100.0 0.51 0.0 1.86 Benzene, CH 80.1 2.53 5.5 Ethanol, C H OH 78.4 1.22 -114.6 1.99 Carbon tetrachloride, CCI 76.8...
1h. A certain pure solvent freezes at 39.8°C and has a freezing point depression constant Kf = 0.777°C/m. What is the predicted freezing point (in °C) of a solution made from this solvent that is (1.90x10^0) m in a non-electrolyte solute? 1i. When (8.23x10^1) g of a non-electrolyte is dissolved in (5.2600x10^2) g of a solvent (with Kb = 0.416°C/m) the boiling point of the solution is 1.50°C higher than the boiling point of the pure solvent. What is the...
1.The freezing point of benzene is 5.5 °C. What is the molar mass of a nonionizing solute if 1.99 grams of the solute added to 20.62 g of benzene lowers the freezing point to 3.44. The Kf of benzene is -5.12 °C/m. Record your answer as a whole number. 2.Water has a Kf of -1.86 °C/m. Calculate the new freezing point of an aqueous solution made by mixing 38.66 g water and 1.64 g MgCl2. 3.Ethanol has a Kb of...
Molar Mass Determination by Freezing Point Depression Calculate and enter the freezing point depression of a solution of 57.6 g ethylene glycol (C2H602) in 734 g H20. Kffor H20 is 1.86 °C kg/mol. °C -2.53 1 homework pts Submit Answer Incorrect. Tries 3/5 Previous Tries A solution which contains 71.9 g of an unknown molecular compound in 363 g of water freezes at -3.85°C. What is the molar mass of the unknown? g/mol 1homework pts Submit Answer Tries 0/5 Molar...
tert-Butyl alcohol is a solvent with a Kf of 9.10 °C/m and a freezing point of 25.5 °C.w liquid was dissolved in 11.6 g of tert-butyl alcohol, the solution froze at 15.3 °C.Which of t Tiquid? View Available Hint(s) ethylene glycol (molar mass = 62.07 g/mol) 1-octanol (molar mass = 130.22 g/mol) glycerol (molar mass = 92.09 g/mol) 2-pentanone (molar mass = 86.13 g/mol) 1-butanol (molar mass = 74.12 g/mol) A protein subunit from an enzyme is part of a...
1) Calculate the freezing point (°C) of a solution of 50 mL of acetone (CH3COCH3, Molar Mass = 58.08 g/mol, density 0.784 g/cm3) in 150g of CCl4, whose normal freezing point is -23.0 °C. Given: P = 1 atm, Kf CCl4 = 29.8 °C/m. Please show work. ------------------------------------------------------------------------------------------- 2) Calculate the boiling point (°C) at P = 1 atm of a solution of 25 g of acetone in 100 g of camphor whose normal boiling point is 204 °C. Kb...