Question

1. Calculate the mass of the following:

a. 2 moles of O2 molecules.

b. 2 moles of Oxygen atoms.​

Answer 1

Answer:

per mole of oxygen. From here, the answer is simple. Just multiply 2 by 31.9988 g because there are two moles of oxygen. So, the answer is 63.9976 g ..

Explanation:

plz like the ans

Answer 2

Answer:

no. of mole = mass/ molar mass

(a) 2 moles of O2 = mass/ molar mass

2 = mass/ 32

since molar mass of O2 is 32

mass = 64g

(b) same 64 g because Oxygen is O2