Concept explainers
Carry out the following conversions: (a) 185 nm to meters, (b) 4.5 billion years (roughly the age of Earth) to seconds (assume 365 days in a year), (c)

Interpretation:
The given conversions are to be carried out for the given measurements.
Concept introduction:
Conversion factor is a fraction obtained from a relationship between the units. It is written as a ratio, and can be inverted to give two conversion factors for every relationship.
Answer to Problem 67QP
Solution:
a)
b)
c)
d)
Explanation of Solution
a) 185 nm to meter
Convert the quantity
Set up the unit conversion calculation using the appropriate conversion factor, which is as follows:
The units in the conversion factor must cancel to give the correct unit for the answer.
Hence,
b)
Convert the quantity
Set up the unit conversion calculation using the appropriate conversion factors.
The conversion is as follows:
The units in the conversion factor must cancel to give the correct unit for the answer.
Hence,
c)
Convert the quantity
Set up the unit conversion calculation using the appropriate conversion factor.
The conversion is as follows:
The units in the conversion factor must cancel to give the correct unit for the answer.
Hence,
d)
Convert the quantity
Set up the unit conversion calculation using the appropriate conversion factors.
The conversion is as follows:
The units in the conversion factor must cancel to give the correct unit for the answer.
Hence,
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Chapter 1 Solutions
BURDGE CHEMISTRY VALUE ED (LL)
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