CHEM 103 Exam CHEM 103

CHEM 103 Exam CHEM 103 x x x x x




Portage Learning 1- x x




6 Final Exam Latest update Questions
x x x x x x




x
and CorrectAnswers graded A+
x x x x




Examx1-6x

EXAM 1 x



Questionx1x


1. Convertx1005.3xtoxexponentialxformxandxexplainxyourxanswer.x




2. Convertx4.87xxx10-6xtoxordinaryxformxandxexplainxyourxanswer.x



Answer:x

1. Convertx1005.3x=xlargerxthanx1x=xpositivexexponent,xmovexdecimalx3xplacesx=x1.0053xx
x103x




2. Convertx4.87xxx10-
6x=negativexexponentx=smallerxthanx1,xmovexdecimalx6xplacesx=x0.00000487x

Questionx2x


Usingxthexfollowingxinformation,xdoxthexconversionsxshownxbelow,xshowingxallxwork:x




1xftx=x12xinches 1xpoundx=x16xoz 1xgallonx=x4xquartsx




1xmilex=x5280xfeet 1xtonx=x2000xpounds 1xquartx=x2xpintsx




kilox(=x1000) millix(=x1/1000) centix(=x1/100)x

, CHEM 103 Exam CHEM 103 x x x x x




Portage Learning 1- x x




6 Final Exam Latest update Questions
x x x x x x




x
and CorrectAnswers graded A+
x x x x




decix(=x1/10)x




1. 2.73xlitersx=x?xml 2. 8.6xptsx=x?xqtsx




Answer:x



1.x 2.73xlitersxxx1000xmlx/x1xliterx=x2730xmlx



2.x 8.6xptsxxx1xqtx/x2xptsx=x4.3xqtsx



Questionx3x


Doxthexconversionsxshownxbelow,xshowingxallxwork:x




1. 248oCx=x?xoKx




2. 25oFx=x?xoCx




3. 175oKx=x?xoFx




Answer:x

, CHEM 103 Exam CHEM 103 x x x x x




Portage Learning 1- x x




6 Final Exam Latest update Questions
x x x x x x




x
and CorrectAnswers graded A+
x x x x




1. 248oCx+x273x=x521xoK oCx→xoKx(makexlarger)x+273x

, CHEM 103 Exam CHEM 103 x x x x x




Portage Learning 1- x x




6 Final Exam Latest update Questions
x x x x x x




x
and CorrectAnswers graded A+
x x x x




2.x 25oFx-x32x÷x1.8x=x-3.88xoCx oFx→xoCx(makexsmaller)x-32x
÷1.8x x x

x
x
x
175oKx-x273x=x-98xoCxxx1.8x+x32x=x-144.4xoFx oKx→xoCx→xoFx
3.x



Questionx4x


Bexsurextoxshowxthexcorrectxnumberxofxsignificantxfiguresxinxeachxcalculation.x




1. Showxthexcalculationxofxthexmassxofxax17.9xmlxsamplexofxchloroformxwithxdensityxo
fx1.49xg/mlx




2. Showxthexcalculationxofxthexvolumexofx19.4xgramsxofxcresolxwithxdensityxofx1.02xg
/mlx


Answer:x
1. Mx=xDxxxVx=x1.49xxx17.9x=x26.7xgx



2.
Vx=xMx/xDx=x19.4x/x1.02x=x19.0xmlx
Questionx5x


1. 1.35601xcontainsx?xsignificantxfigures.x




2. 0.151xcontainsx?xsignificantxfigures.x