How many grams of sodium are in 2.5 moles?

2 Answers
Apr 5, 2016

57.45 g

Explanation:

moles = mass / atomic mass

moles * atomic mass = mass

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

Apr 5, 2016

57.4745g

Explanation:

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