Question

Hello guyz need help
thanks

How many liters of the antifreeze ethylene glycol CH2(OH)CH2(OH) would you add to a car radiator containing of 6.5L of water if the coldest winter temperature in your area is -20 deg Celsius? calculate the boiling point of this water ethylene glycol mixture.
the density of ethylene glycol is 1.11 g/ml

Answer 1

@cece903

Answer 2

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Answer 3

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Answer 4

I think you're missing some information here to first get molality.

Answer 5

(20 deg C change) / (1.86 deg C/m) = 10.75 m
(10.75 mol/1 kg) x (6.5 kg) = 69.875 mol ethylene glycol
(69.875 mol) x (62.0678 g ethylene glycol/mol) = 4337 g
(4337 g) / (1.11 g/ml) = 3907 mL = 3.9 L ethylene glycol