Wha is the freezing point of a solution of 10.5g of urea in 159 g of...
What is the freezing point of a solution that contains 22.5 g of urea, CO(NH2)2, in 205 mL water, H2O? Assume a density of water of 1.00 g/mL.
What is the molar mass of urea if the freezing point of a solution containing 15g of urea in 100g of naphthalene is 64.5C? (freezing point of pure naphthalene is 80.6)
7. What is the mole fraction of urea, CH4N2O, in an aqueous solution that is 46% urea by mass? 8. What volume of a 0.850 M solution of CaCl2 contains 1.28 g of solute? 9. The volume of a 27.0% (by mass) solution is 162.9 mL. The density of the solution is 1.128 g/mL. What is the mass of solute in this solution? 10. Concentrated sodium hydroxide is 19.4 M and has a density of 1.54 g/mL. What is the...
14. What is the vapor pressure in mmHg of a solution of a solution that contains 10.0 g of urea, CHAN20, in 150.0 g of water at 45.0 "C. The vapor pressure of water at 45.0°C is 71.93 mmHg and urea is a nonvolatile solute. 15. What is the freezing point in °C for the above problem? For water, Kr-1.86 °C/m. 16. The van't Hoff factor for KClisi = 1.85. What is the boiling point of a 0.75 m solution...
What is the freezing point of 0.130 m urea in water?
A.) Calculate the freezing point of a solution containing 15.5 g FeCl3 in 176 g water. Calculate the boiling point of the solution above. B.)Calculate the freezing point of a solution containing 3.7 % KCl by mass (in water). Calculate the boiling point of the solution above. C.)Calculate the freezing point of a solution containing 0.170 mMgF2. Calculate the boiling point of the solution above.
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
assuming ideal behavior, find the freezing point of a solution made by dissolving 13.2g of ammonium phosphate in 45.0 g of water?
What is the freezing point in ∘C of each of the solutions below? For water, Kf = 1.86(∘C ⋅ kg)/mol. A solution of 15.0 g of LiCl in 168.0 g of water at 45.0 ∘C, assuming complete dissociation.
a solution is made by dissolving 10.5g sugar in 80.5 g water. calculate the mass percentage of sugar and water in the solution