How many significant figures are in the measurement 40500 mg
Asked by maham237 @ in Chemistry viewed by 325 People
a) two
b) three
c) four
d) five
Answered by maham237 @
b) three
this is because all integers are sig figs, and all numbers between integers are sig figs. This makes the 40,5 part of 40,500 significant. Place holder zeroes that are not after a decimal are not significant, so the last two zeroes of the number are not significant.
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