CHEM 103 MODULE 1 TO 6 EXAM LATEST
2022-2023
QUESTIONS & CORRECT WELL EXPLAINED
ANSWERS PORTAGE
LEARNING|COMPLETE A GRADE
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 feet 1 ton = 2000 pounds 1 quart = 2 pints
centi (=
kilo (= 1000) milli (= 1/1000)
1/100) deci (= 1/10)
1. 24.6 grams = ? kg
2. 6.3 ft = ? inches
1. 24.6 grams x 1 kg / 1000 g = 0.0246 kg
2. 6.3 ft x 12 in / 1 ft = 75.6 inches
please always use the correct units in your final answer
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Module 1 to 6 Exam answers Portage learning
Question 3
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Module 1 to 6 Exam answers Portage learning
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 = ? oK
2. 158oF = ? oC
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
Question 5
Click this link to access the Periodic Table. This may be helpful throughout the exam.
1. 3.0600 contains ? significant figures.
2. 0.0151 contains ? significant figures.
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of this document is illegal extra per year?
2022-2023
QUESTIONS & CORRECT WELL EXPLAINED
ANSWERS PORTAGE
LEARNING|COMPLETE A GRADE
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 feet 1 ton = 2000 pounds 1 quart = 2 pints
centi (=
kilo (= 1000) milli (= 1/1000)
1/100) deci (= 1/10)
1. 24.6 grams = ? kg
2. 6.3 ft = ? inches
1. 24.6 grams x 1 kg / 1000 g = 0.0246 kg
2. 6.3 ft x 12 in / 1 ft = 75.6 inches
please always use the correct units in your final answer
Downloaded by: Karimiowen192 | Want to earn $1.236
Distribution of this document is illegal extra per year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Module 1 to 6 Exam answers Portage learning
Question 3
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Distribution of this document is illegal extra per year?
, Stuvia.com - The Marketplace to Buy and Sell your Study Material
Module 1 to 6 Exam answers Portage learning
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 = ? oK
2. 158oF = ? oC
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
Question 5
Click this link to access the Periodic Table. This may be helpful throughout the exam.
1. 3.0600 contains ? significant figures.
2. 0.0151 contains ? significant figures.
Stuvia.com - The Marketplace to Buy and Sell your Study Material
Downloaded by: Karimiowen192 | Want to earn $1.236 Distribution
of this document is illegal extra per year?
, Downloaded by: Karimiowen192 | Want to earn $1.236 Distribution
of this document is illegal extra per year?
