Solutions Formulas Flashcards by Angela Reyes

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Q

Mole fraction (N)

A

N=mole of substance/total no. of moles

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Q

Percentage mass or volume

A

(L or g of solute/L or g total solution) X 100

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Q

Molarity (M)

A

M=mole of solute/L of solution

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Q

Molality (m)

A

m=mole of solute/Kg of solvent

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Q

Density

A

d=mass/volume

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Q

ΔVP of solution

A

ΔVP of solution=mole fraction of solvent X VP of pure solvent

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Q

VP of solution 1

A

VP of solution=original pressure-ΔVP

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Q

VP of solution 2

A

VPsolution=Nsolute X Psolvent

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Q

ΔBoiling point

A

ΔTb=Kb X m

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Q

Boiling point

A

BP=Original temperature + ΔTb

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Q

ΔFreezing Point

A

ΔTf=Kf X m

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Q

Freezing Point

A

FP=original temperature-ΔTf

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