# [email protected] Sabrina Peterson
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colligative property

a physical property of a solution that depends on the number, but not the identity, of the dissolved solute particles
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freezing point depression

the difference in temperature between a solution’s freezing point and the freezing point of its pure solvent
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molar mass

the mass of one mole of a substance, also molecular weight g/mole
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g/mole

divide the mass of a substance by the number of moles contained in that mass of substance
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freezing point depression equation

^T=mKf or ^T=(moles solute/kg solvent)Kf
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^T of depression formula

the number of degrees Celsius the freezing point of a solution is lowered relative to the freezing point of the pure solvent
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m of depression formula

molality
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molality

concentration of a solution calculated by (mole solute)/(1 kg solvent)
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Kf of depression formula

freezing point depression constant that depends on the solvent
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freezing point depression constant (Kf)

kg solvent * °C/mol solute
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freezing point depression is _________ proportional to the number of moles of solute

directly
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t-butyl alcohol

Tert-butanol
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Why is t-butanol used as a solvent