Question

how many grams of sodium will have the same number of atoms as 6 gram of magnesium?Na=234 ,
MG = 244​

Answer 1

Answer:

Atomic mass of Mg=24g=1 mole of Mg

∴ 24g =1 mole of Mg contain 6.022×10

23

atom

∴ 6gm contains

24

6.022×10

23

×6

=4×6.022×10

23

atoms

Now according to question, there are 6.022×10

23

atoms of Na

23gm of Na contains 6.022×10

23

atoms

∴6.022×4×10

23

atoms of Na weighs

6.022×10

23

23×6.022×10

23

×4

⇒92gm