What is the vapor pressure of a saturated solution of the ionic compound KClO3 at 70°C?
Homework Answers
According to raoults Law,
Psolution = ΧsolventP0solvent.
Xsolvent = nsolvent/(nsolvent+n solute)
solvent = h2o
solute = KClO3
At 70 degree celcius,
solubility of KClO3 is 30g in 100g of water,
so, moles of KCLO3 = 30/122.5 = 0.244
moles of h20 = 100/18 = 5.55.
Xsolvent = 5.55/(5.55+0.244) = 0.95
P0solvent.(at 70 degree celcius )= 233.7mm Hg
Psolution = Χsolvent*P0solvent.
Psolution = 0.95*233.7 = 223.6 mmHg (Answer)
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