Portage learning CHEM 104 Final Exam Questions and Answers (2024 / 2025) (Verified Answers)

Portage learning CHEM 104 Final Exam
Questions and Answers ()
(Verified Answers)




what gcan gserve gas gthe gsolvent gin ga gsolution? gliquid, gsolid, ggas, gor gall gof gthe

g above. g- gANSWER-all gof gthe gabove



a ghomogeneous gmixture gconsists gof g12% gethanol, g28% gmethanol, gand g60%

g water. gwhat gis gthe gsolvent? gwater, gmethanol, gethanol, gor gethanol g+

g methanol g- gANSWER-water



in ga gsolution, gthe gsolute gis: g- gANSWER-the gsubstance gthat gis gdissolved



example gof gcolloid: ggrape gjuice, ghomogenized gmilk, gblood, gor gkool-aid. g-

g ANSWER-homogenized gmilk



example gof gsuspension: gblood, ghomogenized gmilk, gapple gjuice, gor gmayo. g-

g ANSWER-blood

,unknown gliquid gthat gis ginsoluble gin gwater gbut gnot gin gbenzene g(an garomatic

g hydrocarbon gsolvent). gwhat gtype gof gmolecule gis gunknown? gpolar, gnonpolar,

g neither gpolar gor gnon gpolar, gor gboth gpolar gand gnon gpolar g- gANSWER-nonpolar



solubility gof g_________ gin gwater gdecreases gas gtemperature gincreases. gliquids,

g solids, gor ggases? g- gANSWER-gases



which gcompound gwill gbe gmost gsoluble gin ghexane?



CH3CH2OH gCH3OH

CH3CH2CH2OH g- gANSWER-CH3CH2CH2OH



water gsolution gof gsodium gchloride gis ga ggood gconductor gof gelectricity. gdue gto

g this gproperty, gtable gsalt gis gclassified gas ga(n): g



weak gelectrolyte, gstrong gelectrolyte, gnon-electrolyte, gor gsemi-electrolyte g-

g ANSWER-strong gelectrolyte



example gof ga gweak gelectrolyte



MgCl2, gHC2H3O2, gHNO3, gor gKOH g- gANSWER-HC2H3O2

,in gorder gto gprevent gthe gprocess goff geither gcrenation gor ghemolysis gwith gred

g blood gcells gan gintravenous gsolution gconcentration gshould gbe__________ gto

g the gconcentration gof gblood.



hypotonic, ghypertonic, gisotonic, gor gall gof gthe gabove. g- gANSWER-isotonic



the gprocess gof gcrenation goccurs gwhen gthe gconcentration goutside ga gcell gis

g ______ gand gis gsaid gto gbe g_________.



lower gin gconcentration; ghypotonic

higher gin gconcentration; ghypertonic

higher gin gconcentration; ghypotonic

higher gin gconcentration; ghypertonic

none gof gthese g- gANSWER-higher gin gconcentration; ghypertonic



air gcan gbe gclassified gto gbe ga gsolution gof gseveral ggases. gwhich ggas gis

g considered gto gbe gthe gsolvent?



O2, gN2, gCO2, gor gH2O g- gANSWER-N2



arrange gthe gterms gsolution, gsuspension, gand gcolloid gin gorder gof gincreasing

g size gof gthe gdispersed gparticles g(smallest gto glargest). g

, solution g< gsuspension g< gcolloid

solution g< gcolloid g< gsuspension

suspension g< gsolution g< gcolloid

colloid g< gsolution g< gsuspension g- gANSWER-solution g< gcolloid g< gsuspension



identify gthe gtype gof gtransport gthat gwill goccur gfor gthe gsodium gions gthat

g requires genergy gfor gtransport



passive gdiffusion

active gtransport

facilitated gdiffusion

all gof gthe gabove

none gof gthe gabove g- gANSWER-active gtransport



identify gthe gtype gof gtransport gthat gwill goccur gfor gthe goxygen gmolecules gthat

g requires gno genergy gfor gtransport



passive gdiffusion

active gtransport

facilitated gdiffusion

all gof gthe gabove

none gof gthe gabove g- gANSWER-none gof gthe gabove