How many grams of sodium are in 2.5 moles?

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Answer 1 · 2016-04-05T10:06:36

57.45 g

moles = mass / atomic mass

moles * atomic mass = mass

so,
2.5 moles * 22.98 g / mol = 57.45 g

Answer 2 · 2016-04-05T11:15:37

#57.4745g#

#1# mole of any substance weighs #=# Average atomic mass in gram.

Given substance is Sodium, #"Na"#; has Average atomic mass #=22.9898#.

Therefore, #1# mole of Sodium weighs #=22.9898g#
#2.5# moles of Sodium weigh#=22.9898times2.5=57.4745g#