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How many moles of ethylene glycol must be added to 1.0 kilograms of water to produce a solution that boils at 105.0 degrees Celsius? The boiling point elevation constant for water is 0.512 degrees Celsius per mole.
a. 9.77 mol
b. 4.89 mol
c. 2.56 mol
d. 0.512 mol

Respuesta :

lulu1991
The temperature change is 105-100=5. The elevation constant for water is 0.512. So the mole of ethylene glycol is 5/0.512=9.77. So the answer is a. 9.77 mole.

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