Chemistry-sig figs

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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

• Chemistry-sig figs -

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

• Chemistry-sig figs -

where did you get 0.049?

• Chemistry-sig figs -

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

• Chemistry-sig figs -

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

• Chemistry-sig figs -

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

• Chemistry-sig figs -

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

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