PORTAGE LEARNING / CHEM 103 / MODULE 1 TO 6 EXAM ANSWERS Latest UPDATE 2023/2024 (GRADED A+)

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


PORTAGE LEARNING / CHEM 103 / MODULE 1 TO 6 EXAM
ANSWERS Latest UPDATE 2023/2024 (GRADED A+)



MODULE 1 EXAM
Question 1
Click this link to access the Periodic Table. This may be helpful
throughout the exam.
1. Convert 845.3 to exponential form and explain your answer.
2. Convert 3.21 x 10 to ordinary form and explain your answer.
-5




1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2
places
= 8.453 x 10 2




2. Convert 3.21 x 10- 5 = negative exponent = smaller than 1,
move decimal 5 places = 0.0000321

Question 2
Click this link to access the Periodic Table. This may be helpful
throughout the exam.


Using the following information, do the conversions shown below,
showing all work:
1 ft = 12 inches 1 pound = 16 oz 1 gallon = 4
quarts
1 mile = 5280 1 ton = 2000 pounds 1 quart = 2 pints
feet
kilo (= milli (= centi (=
1000) 1/1000) deci (= 1/10)
1/100)


1. 24.6 grams = ? kg

2. 6.3 ft = ? inches


1. 24.6 grams x 1 kg / 1000 g = 0.0246 kg

,Portage Learning / CHEM 103 / Module 1 to 6
Exam
2
2. 6.3 ft x 12 in / 1 ft = 75.6 inches

please always use the correct units in your final answer

,Portage Learning / CHEM 103 / Module 1 to 6
Exam
3


Question 3

, Portage Learning / CHEM 103 / Module 1 to 6
Exam
4


Click this link to access the Periodic Table. This may be helpful
throughout the exam.


Do the conversions shown below, showing all work:
1. 28 C = ?
o




K 2.158 F =
o o




? C 3.
o
343 K
o




= ? F o




1. 28 C + 273 = 301 K
o o o
C → K (make larger)
o



+273
2. 158 F - 32 ÷ 1.8 = 70 C
o o o
F → C (make smaller)
o


-32 ÷1.8
3. 343 K - 273 = 70 C x 1.8 + 32 = 158 F
o o o
K → C→ F
o o o




Question 5
Click this link to access the Periodic Table. This may be helpful
throughout the exam.


1. 3.0600 contains ? significant figures.