Activities and Due Dates HW 7: Ch.6-7 rsity of Pennsylvania-CHEM 101-Fall17-VILL

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Activities and Due Dates HW 7: Ch.6-7 rsity of Pennsylvania-CHEM 101-Fall17-VILLEMAIN 0 11/16/2017 11:55 PM O 11.6/1511/16/2017 12:11 AM Cala lalor- Periodic Table Print Question 14 of 33 Sapling Learning Rank the boiling points of the aqueous solutions below relative to pure water Assume complete dissociation for the ionic compounds Highest boiling point 0.23 m Ci2H22On 0.19 m Ct2Hz2On H20 0.15 m KBr 0.12 m Na SO4 Lowest boiling point There is a hint available! View the hint by clicking on the bottom divider on the divider bar again to hide the hint. Close Previous D Check Answer t aboutus careers privacy poisy terms of

Explanation / Answer

BP --> depends on the amount of ions + molality:

dTb = i*m*Kb

kb = constnat for solvent so only i*m will affect

highest "i*m" product:

0.12*3 = 0.36 for Na2SO4

0.15*2 = 0.30 for KBr

H2O = 0

then

Na2SO4 > KBr > 0.23 m C12H22O11 > 0.19m C12H22O11 > H2O

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