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Question
Calculate the number of gram atoms in 4.6 grams of sodium (Na = 23)
Solution
Given:
Mass of sodium = 4.6g
Atomic mass of Na = 23
Number of gram atoms =?
Number of gram-atoms of Na = `"Mass of Na"/"Atomic Mass of Na"`
= `"4.6g"/"23g"` = 0.2g molecules of sodium
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