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
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
1 answer
1 answer