CHEM 1030 Final Exam Questions With
Correct Answers.
Filtration5-
5 correct5answer✔ ✔ Separates5solid5substances5from5liquids5and5solutions;5based5on
5 a5difference5in5size.
Distillation5-5correct5answer✔ ✔
Separates5a5homogeneous5mixture5based5on5differences5in5boiling5points.
Chromatography5(paper)5-5correct5answer✔ ✔
Separates5substances5on5the5basis5of5differences5in5solubility5in5a5solvent.
Intensive5Properties5-5correct5answer✔ ✔
Independent5of5the5amount5of5substance5present.
5 -Density,5boiling5point
Extensive5Properties5-5correct5answer✔ ✔
Dependent5on5the5amount5of5substance5present.
5 -Mass,5volume.
,Atomic5Number5and5Mass5Number5-5correct5answer✔ ✔
Isotopes5-5correct5answer✔ ✔
Atoms5with5identical5atomic5numbers5but5different5mass5numbers
Mole5-5correct5answer✔ ✔
:5the5amount5of5a5substance5that5contains5as5many5elementary5entities5as5there5are5at
oms5in5exactly5125g5C-12
Avogadro's5Number5(NA)5-5correct5answer✔ ✔ 6.02214185x10^23
Electrostatic5energy5-5correct5answer✔ ✔
potential5energy5that5results5from5the5interaction5of5charged5particle
Quantized5energy5(Max5Planck)5-5correct5answer✔ ✔
Energy5can5be5absorbed5or5released5from5atoms5only5in5certain5amounts5(quanta).
Heisenberg's5Uncertainty5Principle5-5correct5answer✔ ✔
the5more5precisely5the5momentum5(mu)5of5a5particle5is5known,5the5less5precisely5its5po
sition5(x)5is5known
, Principal5Quantum5Number5(n)5-5correct5answer✔ ✔
designates5size5of5the5orbital5(shell)
5 -n5values5are5integers5>0
Angular5Momentum5Quantum5Number5(l)5-5correct5answer✔ ✔
describes5the5shape5of5the5orbital5(subshells)
5 -l5values5are5integers5ranging5from505to5n5−515for5each5value5of5n
Magnetic5Quantum5Number5(ml)5-5correct5answer✔ ✔ specifies5the5three-
dimensional5orientation5of5the5orbital
5 -Values5are5integers5ranging5from5-l5...05....5l
Electron5Spin5Quantum5Number5(ms)5-5correct5answer✔ ✔
The5"spin"5of5an5electron5describes5its5magnetic5field,5which5affects5its5energy.
5 -Allowed5values:5+1/25and5−1/2.
Degenerate5orbitals5-5correct5answer✔ ✔
orbitals5on5the5same5energy5level5have5the5same5energy
Aufbau5principle5-5correct5answer✔ ✔
electrons5fill5orbitals5starting5with5the5lowest5n5before5moving5to5higher5energy5obritals
Correct Answers.
Filtration5-
5 correct5answer✔ ✔ Separates5solid5substances5from5liquids5and5solutions;5based5on
5 a5difference5in5size.
Distillation5-5correct5answer✔ ✔
Separates5a5homogeneous5mixture5based5on5differences5in5boiling5points.
Chromatography5(paper)5-5correct5answer✔ ✔
Separates5substances5on5the5basis5of5differences5in5solubility5in5a5solvent.
Intensive5Properties5-5correct5answer✔ ✔
Independent5of5the5amount5of5substance5present.
5 -Density,5boiling5point
Extensive5Properties5-5correct5answer✔ ✔
Dependent5on5the5amount5of5substance5present.
5 -Mass,5volume.
,Atomic5Number5and5Mass5Number5-5correct5answer✔ ✔
Isotopes5-5correct5answer✔ ✔
Atoms5with5identical5atomic5numbers5but5different5mass5numbers
Mole5-5correct5answer✔ ✔
:5the5amount5of5a5substance5that5contains5as5many5elementary5entities5as5there5are5at
oms5in5exactly5125g5C-12
Avogadro's5Number5(NA)5-5correct5answer✔ ✔ 6.02214185x10^23
Electrostatic5energy5-5correct5answer✔ ✔
potential5energy5that5results5from5the5interaction5of5charged5particle
Quantized5energy5(Max5Planck)5-5correct5answer✔ ✔
Energy5can5be5absorbed5or5released5from5atoms5only5in5certain5amounts5(quanta).
Heisenberg's5Uncertainty5Principle5-5correct5answer✔ ✔
the5more5precisely5the5momentum5(mu)5of5a5particle5is5known,5the5less5precisely5its5po
sition5(x)5is5known
, Principal5Quantum5Number5(n)5-5correct5answer✔ ✔
designates5size5of5the5orbital5(shell)
5 -n5values5are5integers5>0
Angular5Momentum5Quantum5Number5(l)5-5correct5answer✔ ✔
describes5the5shape5of5the5orbital5(subshells)
5 -l5values5are5integers5ranging5from505to5n5−515for5each5value5of5n
Magnetic5Quantum5Number5(ml)5-5correct5answer✔ ✔ specifies5the5three-
dimensional5orientation5of5the5orbital
5 -Values5are5integers5ranging5from5-l5...05....5l
Electron5Spin5Quantum5Number5(ms)5-5correct5answer✔ ✔
The5"spin"5of5an5electron5describes5its5magnetic5field,5which5affects5its5energy.
5 -Allowed5values:5+1/25and5−1/2.
Degenerate5orbitals5-5correct5answer✔ ✔
orbitals5on5the5same5energy5level5have5the5same5energy
Aufbau5principle5-5correct5answer✔ ✔
electrons5fill5orbitals5starting5with5the5lowest5n5before5moving5to5higher5energy5obritals
