Question

Jessica has 12.7 moles of a compound for an experiment. How many particles of the compound does she have?

Answer 1

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

Step-by-step explanation:

Answer 2

Answer:
`76.49* 10^(23)`

Step-by-step explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number
`6.023* 10^(23)` of particles.

To calculate the moles, we use the equation:

1 mole of compound contains =
`6.023* 10^(23)` particles

12.7 moles of compound contain =
`(6.023* 10^(23))/(1)* 12.7=76.49* 10^(23)` particles.