Question

How many grams of sodium will have the same number of atom as 6 grams of magnesium and educate entry and MC denofo

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

Answer 2

Answer:

5.75

Explanation:

If Na and Mg have same number of atoms so, they will have same number of moles also.

So,

No. of moles of Na = 0.25



Hence, mass of Sodium = 23 x 0.25 = 5.75