how many moles are equivalent to 4.151 x 10^25 particles of lithium?

Answer :

Answer:

68.95moles

Explanation:

Given parameters:

Number of particles of lithium  = 4.151 x 10²⁵ particles

Unknown:

Number of moles  = ?

Solution:

From the mole concepts, we know that;

         6.02 x 10²³ particles are contained in 1 mole of a substance

          4.151 x 10²⁵ particles contains [tex]\frac{4.151 x 10^{25} }{6.02 x 10^{23} }[/tex]    = 68.95moles