Chem 103 Portage GRADED FINAL EXAM.2021

Scor
efort
hi z:1
squi 02.
5outof120
Submit
edSep22021at11:05am
Thi
satemptto
ok108minut
es.

Quest
ion1
10/10pts
Youmayfindt
hef
olowi
ngr
esour
ceshel
pful
:
Sci
ent
ificCal
cul
ator
Per
iodi
cTabl
e

Equat
ionTabl
e Downl
oadEquat
ionTabl
e




Compl
etet
het
wopr
obl
emsbel
ow:


1. Conver
t10
05.
3toexponent
i
alf
orm andexpl
ai
nyouranswer
.


2. Conver
t4.
87x10-6 t
oor
dinar
yfor
m andexpl
ainy
ouranswer
.
YourAnswer
:
1) 10
0
5.3t
oexponenti
alf
orm:lar
gerthan1,t
her
efor
eiti
spost
i
veexponent
,move
decmil
3places=1.
00 53x103




2) 4.
87x10-6
t
oordinar
yfor
m:negat
i
veexponent
,smal
ert
han1.Movedecmi
l6pl
aces l
eft
=0.
0
000
0487
1. Conver
t10
05.
3=l
argert
han1=posi
t
iveexponent
,movedec
imal3pl
aces=1.
0
0
53 x103


2.Conver
t4.87x10-6 =negat
i
veexponent=smal
ert
han1,movedeci
mal6pl
aces=
0.0
0000487


Quest
ion2
10/10pts
Youmayfindt
hef
olowi
ngr
esour
ceshel
pful
:
Sci
ent
ificCal
cul
ator

, Per
iodi
cTabl
e

Equat
ionTabl
e Downl
oadEquat
ionTabl
e




Dot
heconver
sionsshownbel
ow,showi
ngalwor
k:
1. 358oK=?oC
2. 53oC=?oF
3. 158oF=?oK
YourAnswer
:
1. 358oK=?oC:K=C-273.
15
358K-
273.
15=84.
85degr
eeC
2.53oC=?oF=(
Cx1.
8)+32=F=127.
4degr
eeF
3.158oF=?oK=(
F-32)x1/
8+273.
15=K=343.
15degr
eeK


1. 358oK-273=85oC K→ oC(
o
mak
esmal
er)-
273
2. 53oCx1.
8+32=127.
4oF C→ oF(
o
makel
arger
)x1.
8+32
3. 158oF-32÷1.
8=70+273 =343oK F→ oC→ oK
o




Quest
ion3
5/10pts
Youmayfindt
hef
olowi
ngr
esour
ceshel
pful
:
Sci
ent
ificCal
cul
ator
Per
iodi
cTabl
e

Equat
ionTabl
e Downl
oadEquat
ionTabl
e




Showthecalcul
ati
onoft
henumberofmol
esi nthegivenamountoft
hef
olowi
ng
subst
ances.Reporty
ouranswer
to3si
gni
ficantf
igur
es.