What is the mass in grams of ONE acetic acid molecule, CH_3COOH?

A. 3.61 x 10^{25}

B. 60.0

C. 9.97 x 10^{-23}

D. 7.31 x 10^{-23}

E. 6.02 x 10^{-23}

C. 9.97*10⁻²³

Explanation:

The molar mass is defined as the mass in grams of 1 mole of the molecule.

The molar mass of acetic acid is 60.052 g/mol.

Which means that:

1 mole = 6.023*10²³ molecules.

So,

6.023*10²³ molecules of acetic acid weighs 60.052 g.

Thus,

1 molecule of acetic acid weighs 60.052/6.023*10²³ g.

The mass of 1 molecule of acetic acid = 9.97*10⁻²³ g.