Pure quartz has a molecular compostion of SiO2. The mol weight of SiO2 is

2 * 16 28 = 60 g/mol

mols of SiO2 = 1.30 / 60 = 0.0217 mol.

Number of O2 atoms = 2 * 0.0217 * 6.022 x 10^27 = 2.61 x 10^26

Pure quartz consist of SiO2. The molecular weight of SiO2 is actually

Si= 28

O2= 32

combined this gives you a total of 60 g/mol

so you would then take 1.30g / 60 g/mol = .02167

so since there are 2 Oxygen atoms then you multiply= .02167 x 2= .04333

1.30gSiO2 x [32gO / 60gSiO2] x [6.02E23atoms O / 16gO] =

Source(s): Chem Major.

1.30gSiO2 x [32gO / 60gSiO2] x [6.02E23atoms O / 16gO] =

This post is last updated on hrtanswers.com at Date : 1st of September – 2022