How many significant figures are in each of the following a.234 b. 2500 c.0.0034. d. 12.00 e. 0.01010

Answer 1

2.34*10^-2

2.5*10^-3

3.4*10^3

1.2*10^-1

1.010*10^2

Answer 2

Here is a site that give you information on s.f.
http://www.chemteam.info/SigFigs/SigFigs.html