Question

The mass of 3.01x10^23 molecules H2O

Answer 1

9.00 g of H₂O

Step-by-step explanation:

First calculate moles,

Moles = No. of Molecules / 6.022 × 10²³ Molecules/mol

Moles = 3.01 × 10²³ Molecules / 6.022 × 10²³ Molecules/mol

Moles = 0.50 moles

Now convert moles to mass,

Mass = Moles × M.Mass

Mass = 0.50 mol × 18.01 g/mol

Mass = 9.00 g of H₂O