Chem 103 Lab Final questions and answers well illustrated.

Chem 103 Lab Final questions and answers well illustrated. What lwere lthe lphysical lproperties lused lto lidentify lalkanes land lalkenes? l- l lcorrect lanswer. l l lBoiling lpoints land lDensity What lcolor lis lthe lpotassium lpermanganate lreagent lin lthe lBaeyer's ltest? l- l lcorrect lanswer. l l lPurple What lcolor lis lthe lbromine lin lthe lbromine ltest? l- l lcorrect lanswer. l l lYellowish/ lOrange Which lhydrocarbon lwill lhave lpositive lresult lfor lthe lbaeyer's land/or lbromine ltest? l- l lcorrect lanswer. l l lAlkenes What lsolvent lwas lused lto lextract lcurcumin? l- l lcorrect lanswer. l l lIsopropyl lalcohol What lis lthe lpercent lof lcurcumin lfound lin lturmeric? l- l lcorrect lanswer. l l l3-5% What lcan lcurcumin lbe lused las lin lthe llab? l- l lcorrect lanswer. l l lpH lIndicator What linstruments lwere lused lin lthis llab? lAlso lknow lthe lparts. l- l lcorrect lanswer. l l lSpec l20 What lis lthe lmaximum lwavelength lof lcurcumin lin lthe lUV/Vis lsprectrum? l- l lcorrect lanswer. l l l425 What ltest lwas lused lto lclassify laldehydes land lketones? l- l lcorrect lanswer. l l lTollens Will la lketone lor laldehyde lreact lwith lthe lTollen's lreagent? l- l lcorrect lanswer. l l lAldehyde lwill lreact lbut lKetone lwill lnot. What ldoes la lpositive lTollen's ltest llook llike? l- l lcorrect lanswer. l l lSilver What lphysical lstate lare lthe lunknown lketone/aldehyde lin? l- l lcorrect lanswer. l l lLiquid