Answer:
[tex]\huge\boxed{n = 3.5\ moles}[/tex]
Explanation:
Given :
Mass in grams = m = 42 g
Molar Mass = M = 12
Required:
No. of moles = n = ?
Formula :
m = m / M
Solution:
n = 42 / 12
n = 3.5 moles
