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OpenStudy (grimsnightmare):
I have a quick question about atomic weight. The atomic weight for Na is 22.98977 now would I round this to 23 or 22.9 or 22.98. Sorry if it's a little silly.
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OpenStudy (amurciano2):
22.99
OpenStudy (grimsnightmare):
Thank you
OpenStudy (grimsnightmare):
Sorry. So for 126.9045 I would only make it 126.90?
OpenStudy (amurciano2):
Yes. It is usually two decimal places and normal rounding rules for the hundredth place
OpenStudy (grimsnightmare):
Thank you very much!
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