Question

Give the number of significan figures and decimal places in each of the following:

1. 80750 X 10^-2

2. 9.9000 X 10^8

3. 30.366 X 10^4 cm^3

4. 0.11692 X 10^-5

Answer 1

Here are two good sites. The first one tells you how to do s.f. and the other is the definition of decimal place.

http://www.chemteam.info/SigFigs/SigFigs.html


https://www.google.com/search?q=what+is+a+decimal+place&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a&channel=sb