A solution is prepared by dissolving 30grams of
benzophenone (182,22 g.mol-1) in 180grams of acetone. Caclulate the
boiling point of the
solutionCalculate the boiling point of the solution. Kbp= 1,71ºC
Kg.mol-1, and the normal boiling point for acetone= 56,2ºC
A solution is prepared by dissolving 30grams of benzophenone (182,22 g.mol-1) in 180grams of acetone. Caclulate...
A solution is prepared by dissolving 28.4 g acetone in 238 g of water. The final volume of the solution is 247mL. For the solution, calculate the concentration of each unit. a.molarity b.mass percent c.molality d.mole fraction
1. A solution was prepared by dissolving 2.20g of urea (H2NCONH2) in 50.00g of water. If for H2O Tb = 100C, Tf = 0C, Kb = 0.52C / m and Kf = 1.86C / m, determine the freezing and boiling point of the solution. 2. A solution is prepared by dissolving 17.41g of a substance X in 600g of benzene and the resulting solution is frozen at 4.00C. If the freezing point of pure benzene is 5.55C and its Kf...
What are the freezing point and boiling point of a solution prepared by dissolving 18.6g of CaCl2 in 200.0g of water? (kf = -1.86
A solution is prepared by dissolving 0.59 mol of MgCl2 in 0.25 kg of water. How many moles of ions are present in solution? What is the change in the boiling point of the aqueous solution?
Question 27 (1 point)B A solution is prepared by dissolving 4.12 grams of a nonelectrolyte in 60.0 grams of water. If the boiling point of this solution is 100.15°C, what is the molar mass of the unknown substance? 844 g/mol 851 g/mol 0.351 g/mol 1.28 g/mol 234 g/mol
Find the boiling and freezing point of a solution prepared by dissolving 12.5g of naphthalene (C10H8) in 450g of chloroform. Melting and freezing points of pure chloroform are -36.5 celsius and 61.2 celsius.
8. A solution is prepared by dissolving 0.434 moles of ethanol, C2H60, in 150. grams of water. Calculate the molality of the solution, freezing point of the solution, and boiling point of the solution. (Kf of H2O 1.86°C/m; fp of H20 = 0.00°C; Kb of H20 = 0.512°C/m; BP of H20 100.00°C)
17. A solution is prepared by dissolving 5.00 g of aspirin, C9H3O4, in 215 g of chloroform, has a boiling point that is elevated by AT = 0.47 °C over that of pure chloroform. What is the value of the boiling point elevation constant for chloroform? 18. What osmotic pressure in atmospheres would you expect for each of the following solutions? a) 5.00 g of NaCl in 350.0 mL of aqueous solution at 50 °C
A solution is prepared by dissolving 7.8 g of ethylene glycol (HOCH2CH2OH) in 50.0 g of water to produce 56.9 mL of solution. Ethylene glycol is non-volatile. a. What is the vapor pressure of the solution at 100oC? b. What is the boiling point of the solution? Kb = 0.51 oC/m
A solution is prepared by dissolving 0.69 mol of MgCl2 in 0.50 kg of water. A.)How many moles of ions are present in solution? (Express your answer to two significant figures and include the appropriate units) B.)What is the change in the boiling point of the aqueous solution? (Express your answer using two significant figures)