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Name:_________________________________________________Per.:______Date:____________________Assignment#:______
ChemistryUnitTestReviewCh.14:Gases
1.
List3propertiesaboutgasesaccordingtothekineticmoleculartheory.
a.
_______________________________________________________________________________________________
b.
_______________________________________________________________________________________________
c.
_______________________________________________________________________________________________
2. Statethegaslawsbelow:
Boyle’sLaw:
Charles’Law: Gay-Lussac’sLaw
CombinedGasLaw:
IdealGasLaw:
3.
Considerasampleofgasinacylinderwithamoveablepiston.Assumingthatnogasislostor
gained(constantn),whatwouldhappento:
a.
thegasvolumeifthepressureisincreased(atconstantT)?________________________________
b.
thegasvolumeifthetemperatureisincreased(atconstantP)?________________________________
c.
thegaspressureifthetemperatureisdecreased(atconstantV)?______________________________
4. Writetheunitsthatcorrespondtoeachofthefollowingvariables:
a. P:_________________________________
b. V:_________________________________
c. n:_________________________________
d. T:_________________________________
5.
StateR(includingunits):____________________________________________
6.
At195K,thepressureexertedbyoxygengasis754kPa.Whatwillthepressurebeat568Kassumingconstantvolume?
a. Statevariables:
b. Writeoutequationandthenisolateunknown:
c. Plug-inandsolve:
d. Finalanswer:
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7.
Ahelium-filledballoonhasavolumeof44.9Lat35°Cand42.6kPa.Whatvolumewillithaveat88.3kPaand10.0°C?
a. Statevariables:
b. Writeoutequationandthenisolateunknown:
c. Plug-inandsolve:
d. Finalanswer:
8.
Convert456Lofgasat295.8kPatoit’snewvolumeatstandardpressure.a.
Statevariables:
b. Writeoutequationandthenisolateunknown:
c. Plug-inandsolve:
d. Finalanswer:
9.
Howmanygramsofchlorinegasarecontainedina30100mLtankat55°Cand204kPa?a.
Statevariables:
b. Writeoutequationandthenisolateunknown:
c. Plug-inandsolve:
d. Finalanswer:
Ch.15:Mixtures1.
Thediagrambelowrepresentsawatermolecule.Labeltheoxygenandhydrogenatoms.Also,
notethepartialcharges.
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2.
Onthediagrambelow,labelapolarcovalentbond,andthenlabelahydrogenbond.
3. Explainwhatthediagramsbelowarerepresentingandwhy:
PicA: PicB:
4. Explainhowaspidercanwalkonwater.
5. Definethefollowingtypesofmixtures: a. Solution
b. Suspension
c. Colloid
6.
Youdissolvepotassiumchlorideintowatertoformanaqueoussolution.a.
Whatisyoursolute?
b. Whatisyoursolvent?
7. Circlethetypesofmoleculesthatcandissolveinwater:a. Polarb.
Nonpolarc. Ionic
8.
Distinguishbetweentheterms“electrolyte”and“nonelectrolyte”.
9.
FindthepercentbymassofwaterinNiCl26H2O.(Hint:firstfindthemolarmasses)
10. Identifytwopropertiesorbehaviorsofcolloids.
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Ch.16:Solutions1.
Youaretryingtodissolvesugarinwater.Listthreewaystocanspeedupthisprocess:
a.
b.
c. 2. WhatdoesHenry’sLawtellusaboutgassolubility?
3.
Usethediagrambelowtoexplainthedifferencebetweensaturated,supersaturated,andunsaturatedsolutions.
4. Define“molarity”.
5.
Calculatethemolarityof0.40molNaCldissolvedin1.6Lofsolution.Showallworkandunits.
6.
Calculatethemolarityof20.2gKNO3in250.0mLofsolution.Hint:Checkyourunitsfirst.
7.
CalculatethenumberofgramsofKOHneededtoprepare2.50Lofa3.0Msolution.
***Thispacketisnotacompletereview.Studyyournotesandtextbookcarefullytoprepareforyourtest.Practiceproblemsfromtheexamples.***
