Question

Calculate the number of gram atoms in 4.6 grams of sodium (Na = 23)

Answer 1

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