Calculate the freezing point in degrees Celsius for 100 grams of NH4Br, a salt, dissolved in 1000 grams of water.
Calculate the freezing point in degrees Celsius for 100 grams of NH4Br, a salt, dissolved in...
A solution of potassium chlorate has 20 grams of the salt dissolved in 100 grams of water at 70 degrees Celsius. Approximately how many more grams of the salt can be added to the solution before reaching the saturation point?
Calculate the molality of an aqueous solution of KBr whose freezing point is -4.95 degrees celsius. The Kf of water is 1.86 degrees C/m. Calculate the ideal Van't Hoff factor for KBr? Show work
1.0345 g of palmitic acid dissolved in 8.7545 g of stearic acid. Calculate the freezing point of the solution. The molar mass of palmitic acid is 256.48 g/ mol. The molal freezing point constant , Kf for stearic acid is 4.5 degrees C/ m and pure stearic acid freezes at 69.3 degrees Celsius.
1. When a 6.31 g sample of CaCl2 is dissolved in water, the freezing point of the solution is -2.63 degrees C. The Kf for the water is 1.86 degrees Clm. Calculate the mass of water used. 2. Suppose a salt (molar mass=58.74g/mol) containing two ions has a solubility of 5.1 mg/L in water at 8.84 degrees C. What is the osmotic pressure in atmospheres of a saturated solution of the salt at 8.84 degrees C?
Ethyl alcohol has a boiling point of 78.0 degrees Celsius, a freezing point of -114 degrees Celsius, a latent heat of vaporization of 879 kJ/K, a latent heat of fusion of 109 kJ/K, and a specific heat of 2.43 kJ/kg.K. How much energy must be removed from 0.510 kg of ethyl alcohol that is initially a gas at 78.0 degrees Celsius so that it becomes a solid at -114 degrees Celsius?
Calculate the change in the freezing point of an aqueous solution of 6.44 grams of glucose in 122 grams of water. The cryoscopic constant of water is 1.86 degrees centigrade / molality
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- What is the freezing point of pure water (in degrees Celsius)? 2- he molar mass (to 3 significant figures) of magnesium chloride hexahydrate, MgCl2·6H2O is ---------------- g/mol.
The freezing point of water is 0.00°C at 1 atmosphere. If 11.84 grams of calcium bromide, (199.9 g/mol), are dissolved in 288.8 grams of water ... The molality of the solution is m. The freezing point of the solution is °C.
A 2.50 g sample of naphthalene, C10H8, was dissolved in 100 g of benzene. What is the freezing point of the solution? The freezing point of pure benzene is 5.45 degrees Celsius; Kf=5.07 degrees Celsius/m. The molar mass of C10H8 is 128.17 g/mol The answer is supposed to be 4.46 degrees Celsius. How did they get there?