Question

how many significant figures in this number 100

Answer 1

why? @petiteme

Answer 2

is it 3 or not

Answer 3

1 is correct,

1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant.

http://www.usca.edu/chemistry/genchem/sigfig.htm

Answer 4

I thought it was 3 cuz u count the numbers after and including the 1

Answer 5

look at the link

Answer 6

Oh okay I get it now :)

Answer 7

It is 3.

Answer 8

100% sure.

Answer 9

Link say so too, just gotta read it right <.<

Answer 10

The significant figures of a number is all the numbers (0-9) AFTER the first number in the range 1-9... so to sat:
0.0000000000000001 got 1 significant figure.
1.0000000 got 8 significant figures.

Answer 11

ok but this number 100 it hasnt any decemial point

Answer 12

That does not mater. 12345 also got 5 significant figures

Answer 13

12345 dosntt have any zeros

Answer 14

lol then take 1234500 that got 7 significant figures.

Answer 15

The idea is that our significant figure say something out accuracy in our calculations and on which decimal our uncertainty is. It is therefor relevant with the zeros in the end.

Answer 16

Take an example. Lets say I want to take 1.0000 gram of \(\alpha\)-D-glucopyranose. but our wright only show us the figures:
1.00
This means we only got 2 significant figures and this is out standard for our uncertainty.
The real number could, for example, be 1.0011 but we don't know.

Get the drift?

Answer 17

our standard for our*

Answer 18

Weighing scale* sorry I write to fast.

Answer 19

ok

http://sigfigscalculator.appspot.com/

http://ostermiller.org/calc/significant_figures.html

Answer 20

there are 3 significant digits

1 significant figure