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OpenStudy (anonymous):
If a sample of barium contains 2.3 x 1023 atoms of barium, how many grams of barium are in the sample? 0.38 g 2.62 g 52.4 g 359.5 g
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OpenStudy (jfraser):
Are you familiar with Avogadro's number? The number of things that makes up a mole of those things?
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