Answer:
The answer to your question is 0.56 moles
Explanation:
Data
Lithium = 3.4 x 10²³ particles
the number of moles = ?
Process
Use proportions and cross multiplication to find the answer. Remember that a mole of each substance equals 6.023 x 10²³ particles.
1 mol of Li ----------------- 6.023 x 10²³ particles
x ---------------- 3.4 x 10²³ particles
x = (3.4 x 10²³ x 1) / 6.023 x 10²³
x = 3.4 x 10²³ / 6.023 x 10²³
x = 0.56 moles
