Question

Which will have more mass 5 mole of na 5 moles of fe.[na=23 u, fe=56 u]?

Answer 1

1 mole of sodium is equal to 23u

So, 5 mole of sodium is equal to 115u

1 mole of iron is equal to 56u

So, 5 mole of iron is equal to 280u.

Hence, five mole of iron has more mass than 5 mole of sodium.