CHEM 105 FINAL EXAM 3 PORTAGE LEARNING LATEST ACTUAL EXAM QUESTIONS AND CORRECT DETAILED ANSWERS (CORRECT VERIFIED ANSWERS) NEWEST UPDATED VERSION

Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
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s Latest UPDATE 2021/2022 GRADED A+
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PayWitWforward.

MODULEW1WEXAM
Question 1 W




WClickWthisWlinkWtoWaccessWtheWPeriodicWTable.WThisWmayWbeWhelpfulWthroughou
tWtheWexam.
1. ConvertW 845.3W toW exponentialW formW andW explainW yourW answer.
2. ConvertW3.21WxW10-5WWWtoWordinaryW formW andW explainWyourWanswer.


1. ConvertW845.3W=WlargerWthanW1W=WpositiveWexponent,WmoveWdecimalW2Wplaces
=W 8.453WxW102
2. ConvertW3.21WxW10-
=WnegativeW exponentW =WsmallerWthanW 1,WmoveW decimalW 5WplacesW=W0.0000
5WWW


321

Question 2 W




WClickWthisWlinkWtoWaccessWtheWPeriodicWTable.WThisWmayWbeWhelpfulWthroughou
tWtheWexam.


UsingW theW followingW information,W doW theW conversionsW shownW below,W showingW allW
work:
1WftW=W12Winches 1WpoundW=W16Woz 1WgallonW=W4Wquart
s
1WmileW=W5280Wfeet 1WtonW=W2000Wpounds 1WquartW=W2Wpints
kiloW(=W1000)W1/100 milliW(=W1/1000 centiW(=
) )WdeciW(=W1/10)


1. 24.6WgramsW=W?Wkg


Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
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s Latest UPDATE 2021/2022 GRADED A+
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Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
W W W W W W W W W W W



s Latest UPDATE 2021/2022 GRADED A+
W W W W W

,Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
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s Latest UPDATE 2021/2022 GRADED A+
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2. 6.3WftW=W?Winches


1.WW24.6WgramsWxW1WkgW/W 1000WgW=W0.0246Wkg
2. 6.3WftWxW12WinW/W1WftW=W75.6Winches

pleaseW alwaysW useW theW correctW unitsW inW yourW finalW answer

Question 3 W




Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
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s Latest UPDATE 2021/2022 GRADED A+
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Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
W W W W W W W W W W W



s Latest UPDATE 2021/2022 GRADED A+
W W W W W

,Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
W W W W W W W W W W W



s Latest UPDATE 2021/2022 GRADED A+
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ClickW thisW linkW toW accessW theW PeriodicW Table.W ThisW mayW beW helpfulW throughoutW
theWexam.


DoWtheWconversionsWshownWbelow,WshowingWallWwork:
1.
28oCW=W?WoKW
2.
158oFW=W ?Wo
CW3.
343oKW =W?Wo
F

1. 28oCW+W273W =W301WoK o
CW→W oKW (makeWlarger)
+273
2. 158oFW-W32W÷W 1.8W=W70WoC o
FW→W oCW(makeW smaller)
-32W÷1.8
3. 343oKW-W273W=W 70WoCWxW1.8W+W32W=W158WoF o
KW→W oCW→W oF

Question 4 W




WClickWthisWlinkWtoWaccessWtheWPeriodicWTable.WThisWmayWbeWhelpfulWthroughou
tWtheWexam.


BeWsureWtoWshowWtheWcorrectWnumberWofWsignificantWfiguresWinWeachWcalculation.


1. ShowW theW calculationW ofW theW massW ofWaW 18.6WmlW sampleWofW freonWwit
hWdensityWofW1.49Wg/ml


Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
W W W W W W W W W W W



s Latest UPDATE 2021/2022 GRADED A+
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Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
W W W W W W W W W W W



s Latest UPDATE 2021/2022 GRADED A+
W W W W W

, Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
W W W W W W W W W W W



s Latest UPDATE 2021/2022 GRADED A+
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2. ShowW theWcalculationW ofW theWdensityWofW crudeW oilWifW26.3WgWoccupiesW30.
5Wml.

1. MW=WDWxWVW=W1.49WxW18.6W=W27.7Wg
2. DW=WMW/WVW=W26.3W/W30.5W=W0.862Wg/ml


Question 5 W




WClickWthisWlinkWtoWaccessWtheWPeriodicWTable.WThisWmayWbeWhelpfulWthroughou
tWtheWexam.


1. 3.0600WcontainsW?WsignificantWfigures.
2. 0.0151WcontainsW?WsignificantWfigures.




Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
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s Latest UPDATE 2021/2022 GRADED A+
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Portage Learning / CHEM 103 / Module 1 to 6 Exam answer
W W W W W W W W W W W



s Latest UPDATE 2021/2022 GRADED A+
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