Which salt would have the least effect on the freezing point of the solvent? a 15M Naci b. 0.5M CaCl, 1.25M Na, S0. 1.OM CaSo,

What is the composition of a methanol (CH, OH) - propanol (CH,CH,CH, OH) solution that has a vapor pressure of 106 torr at 40°C? At 40 C, the vapor pressures of pure methanol and pure propanol are 303 and 44.6 torr, respectively. Assume the solution is ideal. Mole fraction of methanol =0.467 Mole fraction of propanol - 0.533

Calculate the vapor pressure of a solution of 0.60 mole 1-propanol and 0.50 mole 2-propanol. Pure vapor pressure of 1-propanol = 20.9 torr Pure vapor pressure of 2-propanol = 45.2 torr

Assume that when you were transferring the mass of sodium chloride you measured to Test Tube 2, a smalle amount remained on the weighing paper, so that actual mass of NaCl you added to the tube was a bit smaller that the mass you thought you trasnferred. Describe how this error would affect each of the following values. a. The freezing poing depression that you measured. b. The motality that you calculated from your measurement of the freezing point depression. c. The molar mass of NaCl that you calculated from the molairty that you determined.

A 1.065 sample of an unknown substance is dissolved in 30g of benzene (Kf = 5.12 and Tf = 5.5ºC); the freezing pont of the solution is 4.23ºC. The compound is 50.69% C, 4.23% H, 45.08% O by mass. Determine the molecular formula of the substance.

I don’t know how to do this question

please explain

5 L山 When 1.06 g of a certain molecular compound X are dissolved in 85.0 g of dibenzyl ether ((C,H,CH,),0), the freezing point of the solution is measured to be 0.9°C. Calculate the molar mass of X. If you need any additional information on dibenzyl ether, use only what you find in the ALEKS Data resource. Also, be sure your answer has a unit symbol, and is rounded to 1 significant digit. 自 OL Check Save For Later Submit Assignment O2022 McGraw Hill LLC. AlI Rights Reserved. Terms of Use Privacy Center Accessibility EPIC 中Xe MacBook Pro F2 F3 F4 F7 F8 F10 6-5 #3 3. 2 $ 一 8 dele R. A C. W alt alt option 10 command option 1Q15

b) Determine the freezing point of 500 g antifreeze, C2H6O2 in 2.5 kg of water. Given Kf for water is 1.86 °C.m-1.

explain step by step