Question

which has more number of atoms,100 gram of sodium or 100 gram of iron ( given, atomic mass of Na= 23 u, Fe = 56 u ​

Answer 1

Answer:

100 g of Na contain more no. of atoms than 100 g of Fe.

Step-by-step explanation:

Atomic mass of Na =23u.

Atomic mass in gram =23g.

23g of Na contain =6.022*1023g no. of atoms.

100g of Na contain=6.022*1023/23*100 no.of atoms.

=2.6182*1024 no. of atoms.

Similarly,

Fe contain 1.0753*1024 no.of atoms.

So,

100g of Na contain more no. of atoms than 100g of Fe.

I hope now you can understand.

Answer 2

Answer:

Therefore, 100 grams of sodium contains more number of atoms than 100 grams of iron.