Asked by jenny
How many grams of ethylene glycol (C2H6O2) per kilogram of water are needed to give protection up to 120 °C in a car radiator?
Answers
Answered by
DrBob222
Do you mean to keep the car radiator water from boiling?
delta T = 20 = Kb*molality
Solve for m.
m = mols/kg solvent
m = mols/kg water. You must know the volume of the radiator.
mol = grams/molar mass. You know mols an molar mass ethylene glycol; solve for grams ethylene glycol.
delta T = 20 = Kb*molality
Solve for m.
m = mols/kg solvent
m = mols/kg water. You must know the volume of the radiator.
mol = grams/molar mass. You know mols an molar mass ethylene glycol; solve for grams ethylene glycol.
Answered by
jenny
I feel I wasn't given enough information to answer the question originally, but I will try to do my best with what I was given.
Answered by
Hiikari Yuki
Hi,
First, you need the boiling constant of water which is 0.512 oC/m.
molality= Delta T / Kb
molality= 120 oC / 0.512 oC/m = 234 m
First, you need the boiling constant of water which is 0.512 oC/m.
molality= Delta T / Kb
molality= 120 oC / 0.512 oC/m = 234 m
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.