# Homework Solution: What is the vapor pressure of a solution of sucrose (C_12H_22O_11) prepared by… What is the vapor pressure of a solution of sucrose (C_12H_22O_11) prepared by dissolving 10.0 g of sucrose in 200.0 g of water at 100 degree C? The vapor pressure of pure water at 100 degree C is 760 Torr. Assume 3 sf. a) 760 Torr b) 10.00 Torr c) 2.00 Torr d) 258 Torr

Mass of solute = w = What is the gas exigency of a elucidation of sucrose (C_12H_22O_11) expert by dissolving 10.0 g of sucrose in 200.0 g of steep at 100 quality C? The gas exigency of immaculate steep at 100 quality C is 760 Torr. Assume 3 sf. a) 760 Torr b) 10.00 Torr c) 2.00 Torr d) 258 Torr

## Expert Acceptance

Lump of solute = w = 10.0grams

Lump of solvent( steep) = W = 200.0 grams

Vapour exigency of immaculate steep = P0 = 760 torr

Molar lump of sucrose ( C12H22O11) = m= 342 grams

Molar lump of steep = (H2O) = M = 18 grams

According to Raoults law

Po – P/P0 = w/m xM/w

760-P/760 = 10.0/342 x18/200

760 – P = 2

P = 760 – 2 = 758 torr

Vapour exigency of elucidation = 758 torr.

The acceptance is D