h h h h h h h h h h h h h
th Edition Tro h h
Chapter 02 - The Chemist's Toolbox
h h h h h
1. Whenhaddinghandhsubtracting,hthehnumberhofhsignificanthfigureshinhthehanswerhishdeterminedhbyh .
a. thehmosthprecisehnumber
b. thehleasthprecisehnumber
c. thehnumberhwithhthehmosthsignificanthfigureshinhthehcalculation
d. thehnumberhwithhthehfewesthsignificanthfigureshinhthehcalculation
ANSWER:h b
POINTS: 1
2. Whenhmultiplyinghandhdividing,hthehnumberhofhsignificanthfigureshinhthehanswerhishdeterminedhbyh .
a. thehmosthprecisehnumber
b. thehleasthprecisehnumber
c. thehnumberhwithhthehmosthsignificanthfigureshinhthehcalculation
d. thehnumberhwithhthehfewesthsignificanthfigureshinhthehcalculation
ANSWER:h d
POINTS: 1
3. Howhmanyhsignificanthfiguresharehtherehinhthehnumberh10.00?
a. 1
b. 2
c. 3
d. 4hAN
SWER:h dhP
OINTS: 1
4. Howhmanyhsignificanthfiguresharehtherehinhthehnumberh10,100?
a. 1
b. 3
c. 4
d. 5hAN
SWER:h bhP
OINTS: 1
5. Calculatehthehdensityhwithhthehcorrecthnumberhofhsignificanthfigureshofhah50.0hghsamplehofhmercuryhwithhahvolumehof
3.66hmL.
a. 13.66hg/mL
b. 13.7hmL
c. 183hg/mL
d. 0.0732hg/mL
e. 0.073hg/mL
hANSWER:h bhPOI
NTS: 1
6. Calculatehthehdensityhtohthehcorrecthnumberhofhsignificanthfigureshofhah100.0hghsamplehofhmercuryhwhichhoccupieshah
volumehofh7.36hcm3.
a. 13.58hg/cm3
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th Edition Tro h h
Chapter 02 - The Chemist's Toolbox
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b. 13.66hg/cm3
c. 183hg/cm3
d. 0.0732hg/cm3
e. 0.073hg/cm3
h
ANSWER:h ahPOI
NTS: 1
7. Determinehthehmasshinhgramshofhahgoldhsamplehwhichhoccupieshahvolumehofh16.39hmL?hGoldhhashahdensityhofh19.3hg/mL.
a. 0.118hg
b. 0.316hg
c. 0.849hg
d. 1.18hg
e. 316hg
hANSWER:he
hPOINTS:h h
1
8. Determinehthehvolumehoccupiedhbyh1.5hghofhethylhalcohol.hThehdensityhofhethylhalcoholhish0.789hg/mL.
a. 1.9hmL
b. 1.3hmL
c. 0.53hmL
d. 0.526hmL
e. 1.331hmL
hANSWER:h ahP
OINTS: 1
9. Chloroformhishahcommonlyhusedhanesthetichwithhahdensityhofh1.483hg/mL.hDeterminehthehvolumehofhchloroformhneededht
ohdeliverhah9.37hghsamplehofhthehanesthetic.
a. 0.158hg
b. 6.32hg
c. 13.9hg
d. 13.89hg
e. 0.0632hg
hANSWER:h bhP
OINTS: 1
10. Ifh15.0hmLhofhahmetalhhashahmasshofh103.0hg,hwhathishthehdensityhofhthehmetal?
a. 6.87hg/mL
b. 1550hg/hmL
c. 0.146hg/mL
d. 1.46hg/mL
e. Nonehofhthese.
hANSWER:h ahPOINT
S: 1
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th Edition Tro h h
Chapter 02 - The Chemist's Toolbox
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11. Thehdensityhofhgoldhish19.3hg/mL.hIfhthehcurrenthpricehofhgoldhish$56.75hperhgram,hwhathishthehvolumehofhahnuggethofhg
oldhworthh$150.00?
a. 1.15hmL
b. 0.868hmL
c. 1.72hmL
d. 1.27hmL
e. 0.137hmL
hANSWER:h ehP
OINTS: 1
12. WhichhishthehstandardhSIhunithforhmass?
a. Gram
b. Pound
c. Ounce
d. Kilogram
e. TonhA
NSWER:h dh
POINTS: 1
13. WhichhishthehstandardhSIhunithforhlength?
a. Meter
b. Feet
c. Mile
d. Kilometer
e. Centimeter
hANSWER:h ahPOI
NTS: 1
14. WhichhishthehcorrecthSIhunithforhtime?
a. Meter
b. Hour
c. Second
d. Minute
e. Gram
hANSWER:hc
hPOINTS:h h
1
15. WhichhofhthesehrepresentshthehSIhprefixhforhmicroh(μ)?
a. 10−6
b. 10−3
c. 10−9
d. 10−2
e. 106
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