Question

how many gram of sodium will have a same number of atoms in 6 gram magnesium? (Na=23,Mg=24)

Answer 1

magnesium= 6*24
sodium. =144/23
=6.2g

Answer 2

$\huge\mathfrak{Bonjour!!}$

$\huge\bold\green{Answer:-}$

[ Atomic mass of Na= 23.0 u, Mg= 24.0 u]

⏩Number of atoms in 1 mole or 24 g Mg= 6.022 × 10^23

→ Number of atoms in 6g Mg= 6/24 × 6.022 × 10^23

= 2.5 × 10^23 atoms.

→Now, 6.022 × 10^23 number of atoms in grams of sodium= 23g

Therefore, 2.5 × 10^22 number of atoms in grams of sodium= 23× 2.5 ×10^22/ 6.022 × 10^23 = 9.548 × 10^-1 g.

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