Calculate the osmolarity of the following solution, If it is "soluble" in water. Show work.\ 2.5g of Al(OH)3 in 52.5 mL of solution

27. Find the freezing point of a solution of 990 g of CH3OH in 2.5 kg of water. Use the water f.R-depression constant: K(H,0) = = 1.86 °C/{mol(solute)/kg(solvent)} A) +123 °C B) +77 °C C) +23 °C D) -0.74 °C E) -23 °C

Match the following aqueous solutions with the appropriate letter from the column on the right. fill in the blank 1 1. 0.153 m CaCl2      A. Highest boiling point fill in the blank 2 2. 0.260 m NaCl   B. Second highest boiling point fill in the blank 3 3. 0.163 m CoCl2   C. Third highest boiling point fill in the blank 4 4. 0.430 m Sucrose (nonelectrolyte)   D. Lowest boiling point

Rank the listed real (non-ideal) solutions from lowest to highest osmotic pressure when all at the same temperature. Show the work used to determine this order. 0.010 M NaCl 0.020 M NaCl 0.027 M MgCl2 0.020 M CaSO4 0.020 M C12H22O11 (Sucrose) 0.040 M C12H22011 (Sucrose) 0.080 M C12H22011 (Sucrose)

284.76 mL of 1.24 M organic salt was mixed with 269.60 mL of Ethanol (d= 0.789 g/mL, MW 46.07g/mole). Pure ethanol has a vapor pressure of 0.059 atm what will be the vapor pressure of the solution? (round your answer to 3 decimal places, no need to write the unit)

11. The heat of solution ( Δ Hsoln) is the algebraic sum of the heat of mixing (Δ Hmix), the heat of solvent (Δ Hsolvent) and the heat of solute  (Δ Hsolute).  Which of these four enthalpy changes can only be exothermic?                                  W) Δ Hsoln                   X) Δ Hmix                       Y) Δ Hsolvent                   Z) Δ Hsolute Group of answer choices A.) W B.) Z C.) Y & Z D.) X

EJ0.939 M What is the vapor pressure of a 45.0 % solution of glucose, CH,,06, at a particular temperature, 12 6' given that the vapor pressure of pure water at that temperature is 486 mm Hg? 186 m m Ha