Jessica has 12.7 moles of a compound for an experiment. how many particles of the compound does she have? a. 2.11 × 1023 b. 4.74 × 1023 c. 7.65 × 1023 d. 4.74 × 1024 e. 7.65 × 1024

Number of moles is defined as the ratio of given mass in g to the molar mass.

The mathematical expression is given as:

Number of moles  =

Number of moles of compound  = 12.7 moles (given)

As, 1 mole of any compound is equal to particles.

where,    is Avogadro number.

Formula for calculating particles is given by:

where, N =  number of particles, n = number of moles and is Avogadro number.

Put the values,

= or  

Hence, number of particles of the compound is equal to