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The mole is the unit of measurement in the International System of Units (SI) for amount of substance. The unit is defined as the amount of a chemical substance that contains as .... lighting for plants is sometimes expressed in micromoles per square meter per second, where 1 mole of photons = 6.02 x 1023 photons.


For example, one mole of grapefruits would be as big as the earth. ... However, most chemical writing uses mol/dm3, or mol dm-3, which is the same as mol/L.


Oct 23, 2013 ... Because the mole contains so many units, they're most often used in chemistry is a way of measuring really really small things like atoms or ...


The word “mole” suggests a small, furry burrowing animal to many. But in this lesson, we look at the concept of the mole in chemistry. Learn the incredible ...


Aug 6, 2009 ... The Mole. ... 4 million times as long as the Earth has already existed ! .... A chemistry student prepares 2.09 grams of the compound copper (II) ...


Oct 20, 2010 ... I like fill-in-the-blank days. However, there is a problem with mole day. Mole day is, of course, 10/23. You know, a mole? One mole is 6.02 x ...

Sep 11, 2012 ... But in this lesson, we look at the concept of the mole in chemistry. Learn the incredible magnitude of the mole--and how something so big can ...


As anyone who has taught chemistry knows, the mole concept is one of the most ... really impossible to work with-Avogadro's number is just too large to picture.


Now that's a big number! While a dozen eggs will make a nice omelet, a mole of eggs will fill all of the oceans on earth more than 30 million times over.


Would it not make more sense to define a mole as 1.0 x 1023 things, a nice ( albeit large) integer that everyone can easily remember? To understand why the  ...