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How can I get the the Avogadro constant?

asked 2012-01-26 13:24:00 -0500

Mebus gravatar image

Hi!

How can I get the Avogadro constant http://en.wikipedia.org/wiki/Avogadro... as unit in sage?

Thanks

Mebus

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answered 2012-01-26 13:45:18 -0500

kcrisman gravatar image
sage: units.amount_of_substance.mole
mole

See the units package doc for more info on how to use Sage units.

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This is cool - however I spotted something strange: if I do "b=1 * units.amount_of_substance.mole", then "b.convert(units.amount_of_substance.elementary_entity" I get 6.02214179000000e23*elementary_entity while the official recommended value is 6.022141 2 9000000e23 (is it a typo somewhere?)

Emil Widmann gravatar imageEmil Widmann ( 2012-01-27 03:38:58 -0500 )edit

That's possible. If you can verify this with a standards organization link, open a Trac ticket to fix it and cc: whoever added the units package.

kcrisman gravatar imagekcrisman ( 2012-01-27 06:07:31 -0500 )edit
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This has been fixed by Trac #12373: http://trac.sagemath.org/sage_trac/ticket/12373

Eviatar Bach gravatar imageEviatar Bach ( 2013-06-22 10:44:54 -0500 )edit

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Asked: 2012-01-26 13:24:00 -0500

Seen: 224 times

Last updated: Jan 26 '12