What is the boiling point (in °C) of a solution of 9.22 g of I2 in 66.5 g of toluene, assuming the I2 is nonvolatile? (For toluene, Tb = 110.63°C and Kb = 3.40°C·kg/mol.)
3 answers
Jamie/Anne/Kenna/Sam -- please use the same name for your posts.
mols I2 - g/molar mass = ?
Solve for mols I2.
m = molality = mols I2/kg solvent. Solve for m.
delta T = Kb*m. You know Kb and m, solve for delta T.
Add delta T to the normal boiling point of toluene to find the new b.p.
Post your work if you get stuck.
Solve for mols I2.
m = molality = mols I2/kg solvent. Solve for m.
delta T = Kb*m. You know Kb and m, solve for delta T.
Add delta T to the normal boiling point of toluene to find the new b.p.
Post your work if you get stuck.
Take a hint from Ms. Sue. It helps us tremendously if you use the same screen name. It get's your question(s) answered faster and with a lot less confusion. Using Anonymous as a screen name adds confusion, too.