Calculate the vapor pressure of the solution made by dissolving 20 g of NaCl in 100g of water at 25°C? The vapor pressure of water at 25°C is 23.8 mmHg

Glycerin, C3H3O3, is a nonvolatile liquid. What is the vapor pressure of a solution made by adding 165 g glycerin to 338 mL H20 at 39.8°C? The vapor pressure of pure water at 39.8°C is 54.74 torr and its density is 0.992 g/em. Psoln torr

Which aqueous solution all at 25 oC will have the lowest osmotic pressure?          Π = MRT and Π = i MRT       R = 0.0821 (L·atm)/(mol·K) Group of answer choices 0.05 M KBr 0.04 M MgCl2 0.1 M LiCl 0.2 M Na2SO4

The following table lists molar concentrations of seven major ions in seawater. Using a density of 1.022 g/mL for seawater, convert the concentrations for the two ions in the question below into molality. The potassium  ion: The sulfate ion:   Ions g/kg mM Na+ 10.781 480.57 K+ 0.399 10.46 Mg2+ 1.284 54.14 Ca2+ 0.4119 10.53 Cl- 19.353 559.40 SO42- 2.712 28.93 HCO3- 0.126 2.11 Total 35.067 n/a

Calculate the vapor pressure in mmHg for a solution prepared with 10.0 mL of ethanol (C2H6O) and 20.0 mL of water at 60ºC. The vapor pressure of and density pure ethanol at 60ºC are 349 mmHg and 0.754 g/mL, respectively. The vapor pressure and density of pure water at 60ºC is 149.4 mmHg and 1.00 g/mL, respectively. (The molecular weight of C2H6O is 46.08 amu)

Choose the aqueous solution below with the lowest freezing point. All solutions are made of nonvolatile solutes. 0.200 m C6H12O6 0.200 m Al2(SO4)3 0.200 m K3PO4 0.200 m Ca(ClO4)2 These all have the same freezing point

A solution with 1 mol C2H5OH in 100 g of solvent has the same molality as a solution with 1 mol NaCl in 100 g of solvent.  true or false?