Posted by **Susan** on Wednesday, February 22, 2012 at 8:18pm.

Display the final answer in correct scientific notation and show correct number of significant figures in the final answer:

6.0223010000 x 10-24 x 2.222090001 x 10-30

I get this far and then get stuck:

13.3820948351123 x 10 -54

- Chemistry -
**DrBob222**, Wednesday, February 22, 2012 at 8:34pm
You have 11 significant figures in the 6.022 number and 10 in the other one. The rule in multiplication and division allows you to have the less of the two; therefore, count the first 10 digits in the answer and that x 10^-54 will be the number. The 11th number is a 5; I would round the 3 to a 4.

- Chemistry -
**Susan**, Wednesday, February 22, 2012 at 8:43pm
Thank you so much....I just wasn't sure if I needed to do one more step or not. So the significant figure in the answer would be 10 and the answer would be 13.38209484 x 10 -54!Correct?

- Chemistry -
**DrBob222**, Wednesday, February 22, 2012 at 8:59pm
That's what I think.

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