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Portage Learning Chem 103: Modulel 1 Exam| Complete Solutions

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Portage Learning Chem 103: Modulel 1 Exam| Complete Solutions

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



1. Convert 1005.3 to exponential form and explain your answer.



2. Convert 4.87 x 10-6 to ordinary form and explain your answer.

Your Answer:

10005.3 move the decimal over to the left three spaces than multiply 10 to the 3 power to get:
1.0053 X 103

4.87 x 10-6 move the decimal to the left six spaces 0.00000487




1. Convert 1005.3 = larger than 1 = positive exponent, move decimal 3 places = 1.0053 x 103



2. Convert 4.87 x 10-6 =negative exponent =smaller than 1, move decimal 6 places =
0.00000487


Question 2
pts

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
kilo (= milli (= 1/1000) centi (= 1/100) deci (=
1000)1/10)

, 1. 350 pounds = ? ton



2. 0.632 m = ? cm

Your Answer:


350lbs/1 X 1ton/2000lbs = 0.175 tons .




0.632m/1 X 100/1 = 63.2cm

1. 350 pounds x 1 ton / 2000 pounds = 0.175 ton



2. 0.632 m x 100 cm / 1 m = 63.2 cm


Question 3
pts

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

Your Answer:

I add 273 to the smaller number which is Celcius to get the larger
number Kelvin

= First I subtracted 32 from 158 than divided by 1.8

Their are two steps to this probem first I have to convert Kelvin to Celcius by subtracting 273
from 343 than covert Celcius to Fahrenheit by multiplying 70 by 1.8 than adding 32.
X1.8+32=

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