If the atomic mass of sodium is 23,the number of moles in 46gram of sodium is
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No of moles of Na = mass of Sodium/ molar mass 1) frist we have to divide mass of Na w.r.t molar mass of Na #) molar mass of Na =23 gm/mol
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no of moles = given weight /gram Aaronic weight
= 46/23
= 2 moles
therefore the no.of moles in 46grams of Na is 2 moles
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