Question

calculate the number of atoms in 60 grams of Na

Answer 1

Hello...

Ok to calculate atoms..let's first find out how many moles of Na are in 60g

As we know that Molar mass of Na is 23g

so moles = 60/23 = 2.60 moles

now 1 mole has 6.022 × 10^23 atoms

so 2.60 moles will have

= 2.60 × 6.022 × 10^23 atoms
= 15.65 × 10^23 atoms

Thanks