Calculate the mass of NaCl necessary to raise the boiling point of water to 110*C. Assume an ideal solution of strong electrolyte and 1kg water.
Calculate the mass of NaCl necessary to raise the boiling point of water to 110*C. Assume...
- Boiling point and Freezing point Elevation Calculate the boiling point and freezing points of water solutions that are 1.50 Min the KCl, a strong electrolyte. (the kb for water is 0.52", kf = 1.86)
Pure ethanol has a boiling point of 78.0 °C. What is the boiling point of a solution that contains 12.7 grams of KI (MW = 166 g/mol) dissolved in 125 grams of ethanol (MW = 46.0 g/mol)? Assume that KI is a strong electrolyte in ethanol. (Ethanol: kb= 1.22 °C/m)
What mass of ethylene glycol must be added to 1615g water to raise the boiling point to 104.3 degrees celcius?
1. The normal (at 760 mmHg, or 1 atm) boiling point of water is 100°C. What mass of glucose (C6H202) would you have to dissolve in 1000 g of water to decrease the vapor pressure at 100°C by 1%? Assume that water follows Raoult's law. M(H2O) = 18.02 g/mol, M(C6H1206) = 180.2 g/mol. (10 pts) 2. What is the normal boiling point of such a solution? Assume ideal behavior. The ebullioscopic (boiling-point elevation) constant of water is Kp = 0.512...
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...
A solution of methyl acetate C3H6O2 and water is boiling at 98.4°C. A sample of the vapor above the solution is cooled until it condenses. This condensed sample is analyzed, and turns out to be 25.% methyl acetate by mass. Calculate the percent by mass of methyl acetate in the boiling solution. Here's some data you may need: normal boiling point density vapor pressure at 98.4°C methyl acetate 57.°C 0.93gmL 2603.torr water 100.°C 1.00gmL 719.torr Be sure your answer has...
7.65 y Calculate the boiling and freezing points of water solutions that are 1.15 M in the following solutes: a. KBr, a strong electrolyte b. ethylene glycol, a nonelectrolyte c. (NH4)2CO3, a strong electrolyte d. Al2(SO4)3, a strong electrolyte
An aqueous sucrose solution freezes at -0.210 degree C. Calculate the normal boiling point and the molality of an aqueous glucose solution having the same vapor pressure. Assume ideal solution behavior and kf and kb for water are 1.86 and 0.52 K-kg/mol, respectively.
Calculate the vapor pressure of water at 0°C, if we assume the normal boiling point (The heat of vaporization of water is 43.9 kJ/mol)
What mass of K3PO4 (nonvolatile salt) would it take to raise the boiling point of 500 mL of water 1.00 degrees Celsius. The K boiling point is 0.5121 degrees C/m. How do you figure out the can’t Hoff factor?