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OpenStudy (anonymous):
How many potassium atoms are in 250.0 grams of pottassium
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OpenStudy (sweetburger):
1 mole of K is 39g and every 1 mole of a substance has 6.022x10^23 atoms so we divide 250/39 and that tells us how many moles we have of K which we than multiply by 6.022x10^23 which gives us how many atoms are in 250 grams of substance.
OpenStudy (sweetburger):
|dw:1399092829897:dw| ill let you find the answer from here :P
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