The vapour pressure of water at 293 K is 17.536 mm Hg. Calculate the vapour pressure of an aqueous solution when 20 g of glucose (molar mass = 180 g mol-1) is dissolved in 500 g of water.
a) 17.036 mm Hg
b) 17.136 mm Hg
c) 17.236 mm Hg
d) 17.336 mm Hg