Answer
The number of atoms in 0.07 moles of lithium is 4.2161 x 10²² atoms.
Explanation
Given:
Moles of lithium = 0.07 mol
What to find:
The number of atoms in 0.07 moles of lithium
Step-by-step solution:
From Avogadro,
1 mole of a substance contains 6.023 x 10²³ atoms.
So 0.07 mole of lithium will contains
[tex]\frac{0.07mol}{1.0mol}\times6.023\times10^{23}\text{ }atom=4.2161\times10^{22}\text{ }atoms[/tex]The number of atoms in 0.07 moles of lithium is 4.2161 x 10²² atoms.
