A quantity of 78.2 g of CaCl2 was dissolved per 1000. g of water. What is the...

Question

Question

A quantity of 78.2 g of CaCl₂ was dissolved per 1000. g of water. What is the freezing point in ºC?

science chemistry

Answer 1

Similar Homework Help Questions

23) 22.22 g of MgBr, are dissolved in in 1000 g of water solution. What is...

23) 22.22 g of MgBr, are dissolved in in 1000 g of water solution. What is the new: a. Freezing point of this solution (2pts) b. Melting point of this solution (2pts)
1. When a 6.31 g sample of CaCl2 is dissolved in water, the freezing point of...

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?
Which of the following solutes, dissolved in 1000 g of water, would provide a solution with...

Which of the following solutes, dissolved in 1000 g of water, would provide a solution with the lowest freezing point? 0.045 mol of barium chloride, MgCl2 0.045 mol of ammonium nitrate, NH Br 0.045 mol of acetic acid, CH3COOH 0.045 mol of urea, CO(CH3)2 0.045 mol of calcium sulfate, BaSO4

1.A solution that contains 15.581 grams of benzene (molar mass = 78.1 g/mol) in 420 g...

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...
if 54.2g of CaCl2 are dissolved in 100.0 ml of pure water. what is the concentraion...

if 54.2g of CaCl2 are dissolved in 100.0 ml of pure water. what is the concentraion of the solution in g/l and in M.
Assuming that CaCl2 (MW = 111.0 g/mol) dissociates 100% in solution, what mass of CaCl2 is...

Assuming that CaCl2 (MW = 111.0 g/mol) dissociates 100% in solution, what mass of CaCl2 is required to lower the freezing point of 500.0 g water to -5.0 oC? [Kf = 1.86 oC Kg /mol]

if 52.5 g of LiF is dissolved in 306 g of water, what is the expected...

if 52.5 g of LiF is dissolved in 306 g of water, what is the expected freezing point of the solution? (Assume the van’t Hoff factor, i, for LiF is 2)
steps of solving please 33. Which of the following solutes, dissolved in 1000 g of water,...

steps of solving please 33. Which of the following solutes, dissolved in 1000 g of water, would provide a solution with the lowest freezing point? a. 0.030 mol of barium chloride, BaCl2 b. 0.030 mol of urea, CO(NH)2 c. 0.030 mol of calcium sulfate, CaSO4 d. 0.030 mol of ammonium nitrate, NH4NO3 e. 0.030 mol of acetic acid, CH2COOH
What mass of water must be used to prepare a solution of 25.5 g of CaCl2...

What mass of water must be used to prepare a solution of 25.5 g of CaCl2 dissolved in water if the mole fraction of the CaCl2 in solution is 0.105?

When 23.6 g of calcium chloride, CaCl2, was dissolved in water in a constant-pressure calorimeter, the...

When 23.6 g of calcium chloride, CaCl2, was dissolved in water in a constant-pressure calorimeter, the temperature rose from 25.0 C to 38.7 C. If the heat capacity of the solution and the calorimeter is 1258 J/C, what is the enthalpy change when 0.710 mol of calcium chloride dissolves in water? The solution process is CaCl2(s) --> Ca2+(aq) + 2Cl–(aq)