required concentration (in percent by mass) for an aqueous ethylene glycol (C2H6O2)
solution to have a boiling point of 104.0 °C.
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.Kb = 0.512°C/m. of water
CHANGE in temperature = kb * Molarity
change in temperature = 0.152 * Molarity of solution
104-100 c = 0.152* M
4 Celcius = 0.152M
molarity of water = 4/ 0.152 = 26.32
mass of water = 26.32 * 18 = 473.68g
mass of ethyl glycol = 1000g - 473.68 = 526.32g
% weight = 526.32g/1000g * 100% = 52.632%
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