Chemistrysig figs
posted by Rebekah on .
Each of the following numbers was supposed to be rounded to two significant figures. For each one below, decide whether it was correctly rounded or not, and for those that were incorrectly rounded, correct them
(a) 1.249 X 10 to the 3rd power. They said it rounded to 1.3 X 10 to the third power.
Im pretty sure this is correct but i only have one submission and i need help:)
thanks

No it is not correct. 0.049 does not round up to 0.1

where did you get 0.049?

Look at the last two digits of your problem. 0.249 does not round up to 0.3

oh so is it incorrect and the answer is 1.2 or is it 1.20? does the second answer have 3 sig figs?

why does KMnO4 act as self indicator in titration invoulving KMnO4?

ernest y did u post that on my question? it doesn't ever pertain to my question