April 17, 2014

Homework Help: Chemistry

Posted by Pablo on Thursday, January 10, 2013 at 11:29pm.

I have a Chemistry question which should be very simple but I do not know what significant figures are.

Assuming the following numbers are measurements and using the rules for significant figures, determine the answer for the following calculation.


1. 81.0059
2. 81.006
3. 81.01
4. 81.0
5. 81

The number obtained from the calculator is 81.00595238 should I just round or are significant figures something else entirely?

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