Answer:
3.44mole
Explanation:
Given parameters:
Mass of oxygen = 55g
Unknown:
Number of moles = ?
Solution:
To solve this problem, we use the expression below:
Number of moles = [tex]\frac{mass}{molar mass}[/tex]
Molar mass of oxygen = 16g/mol
Number of moles = [tex]\frac{55}{16}[/tex] = 3.44mole
