CHEM 104 MODULE 1- 6 EXAM 2024/2025(Portage
Learning)VERIFIED QUESTIONS AND ANSWERS
WITH CALCULATIONS 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 10-5 to ordinary form and explain your answer.
1. Convert 845.3 = larger than 1 = positive exponent, move decimal
2 places
= 8.453 x 102
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 1 quart = 2
feet pounds pints
kilo (= 1000) milli (= centi (=
1/100) 1/1000) deci (=
1/10)
1. 24.6 grams = ? kg
2. 6.3 ft = ? inches
,CHEM 104 MODULE 1- 6 EXAM 2024/2025
1. 24.6 grams x 1 kg / 1000 g = 0.0246 kg
2. 6.3 ft x 12 in / 1 ft = 75.6 inches
,CHEM 104 MODULE 1- 6 EXAM 2024/2025
please always use the correct units in your final answer
Question 3
, CHEM 104 MODULE 1- 6 EXAM 2024/2025
Click this link to access the Periodic Table. This may be helpful
throughout the exam.
Do the conversions shown below, showing all work:
1. 28oC = ?
o
K 2.
158oF = ?
o
C 3.
343oK =
? oF
1. 28oC + 273 = 301 oK o
C → oK (make larger)
+273
2. 158oF - 32 ÷ 1.8 = 70 oC o
F → oC (make
smaller)
-32 ÷1.8
3. 343oK - 273 = 70 oC x 1.8 + 32 = 158 oF o
K → oC → oF
Question 4
Click this link to access the Periodic Table. This may be helpful
throughout the exam.
Be sure to show the correct number of significant figures in each
calculation.
1. Show the calculation of the mass of a 18.6 ml sample of
freon with density of 1.49 g/ml
2. Show the calculation of the density of crude oil if 26.3 g
occupies 30.5 ml.
1. M = D x V = 1.49 x 18.6 = 27.7 g
2. D = M / V = 26..5 = 0.862 g/ml
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