Answer:
1.82moles
Step-by-step explanation:
Mass = 357.80g
Molar mass of gold (Au) = 196.97g/mol
Number of moles = mass / molar mass
Number of moles = 357.80 / 196.97
Number of moles = 1.8165 moles
The number of moles is approximately 1.82molespresent in 357.80g of Au