In preparation for a recipe, a baker dissolves 36 g of sugar (C12H22O11, GFM = 342 g/mol) in 250 g of hot water. The vapor pressure of pure water (GFM = 18 g/mol) at 80˚C is 355 mmHg. Calculate the vapor pressure of sugared water at the same temperature? A. 355 mmHg   B. 2.66 mmHg   C. 352 mmHg   D. 2.68 mmHg

The vapor pressure of pure water at 35°C is 42.2 mm Hg. What is the vapor pressure of a mixture of 7.5 g sucrose (C12H22011) and 42.5 g water? a. 21.8 mm Hg O b. 41.8 mm Hg O c. 35.9 mm Hg d. 40.6 mm Hg O e. 7.45 mm Hg

Toluene (C7H8) is a common laboratory solvent with ΔH°vap = 38.1 kJ/mol. If the vapor pressure of toluene at 89.6 °C is 380. torr, at what temperature, in °C, will toluene have a vapor pressure of 507 torr?

Part A Two liquids, A and B, have vapor pressures at a given temperature of 24 mmHg and 36 mmHg, respectively. We prepare solutions of A and B at a given temperature and measure the total pressures above the solutions. We obtain the following data: Solution Amt A (mol) Amt B (mol) P (mmHg) 1 1 1 30 1 28 3 1 32 4 1 33 Predict the total pressure above a solution of 4 mol A and 2 molB. Express your answer to two significant figures and include the appropriate units. HÀ ? Ptotal Value Units

The vapor pressure of ethanol, CH3CH2OHCH3CH2OH, at 40.0 °C is 17.88 kPa. If 2.10 g of ethanol is enclosed in a 3.00 L container, how much liquid will be present? mass of liquid:  g

Diethyl ether (C4H10O2) has heat of fusion DHfus = +7.3 kJ/mol.  Find the heat of freezing 12.5 g of it: