Solution Found!
Indicate the number of significant figures in each number.
Chapter 1, Problem 80E(choose chapter or problem)
Indicate the number of significant figures in each number. If the number is an exact number, indicate an unlimited number of significant figures.
a. 305,435,087 (2008 U.S. population)
b. 2.54 cm = 1 in
c. (density of lead)
d. 12 = 1 dozen
Questions & Answers
QUESTION:
Indicate the number of significant figures in each number. If the number is an exact number, indicate an unlimited number of significant figures.
a. 305,435,087 (2008 U.S. population)
b. 2.54 cm = 1 in
c. (density of lead)
d. 12 = 1 dozen
ANSWER:
Step 1 of 4
(a)
The non-place-holding digits in a reported measurement are called significant figures.
We apply general rules of significant figures.
1. All nonzero digits are significant figures
2. Interior zero i.e zero between two numbers are significant
3. Trailing zero i.e zero after a decimal point are significant
4. Leading zero i.e zero to the left of the first nonzero number is not significant. They only serve to locate the decimal point .
5. Zero at the end of a number but before a decimal point is ambiguous and should be avoided by using scientific notation.
The given - 284, 796,887 (2001 population).
In the given numbers all non zero numbers are significant figures.
Therefore, it has 
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