How many molecules are present in 3.09 mol of silicon dioxide, SiO2

There are 1.86 x 10²⁴ molecules of Silicon dioxide, SiO₂

The mole is the number of particles(molecules, atoms, ions) contained in a substance

Moles can also be determined from the amount of substance mass and its molar mass

1 mol = 6.02.10²³  particles

Can be formulated

N = number of particles

n = mol

No = Avogadro's = 6.02.10²³

3.09 mol of Silicon dioxide, SiO₂

n=mol=3.09

it's 3.2 on edge, i just took the test.