Answer:
151.4 moles
Step-by-step explanation:
Data Given:
Formula units of KCl = 9.12x10²⁵
no. of moles = ?
Solution
Formula used
no. of moles = no. of particles / Avogadro's number
Where
Avogadro's number = 6.022 x 10²³
Put values in above equation
no. of moles = 9.12x10²⁵ formula units / 6.022 x 10²³ (formula units/mol)
no. of moles = 151.4 moles
So,
There are 151.4 moles is represent by 9.12x10²⁵ of KCl formula units