Question

Imagine you are sitting in a room full of oxygen molecules at 300 K. If the room has a volume of 1.0 x 104 m3, what is the number of oxygen molecules in the room if the pressure is at 1 atm (101,325 Pa)? Avogadro’s number is 6.02 x 1023 mol-1 and R = 8.31 J/mol-K.

a.

1.2 x 10²⁸ molecules

b.

2.4 x 10²⁸ molecules

c.

1.2 x 10²⁹ molecules

d.

2.4 x 10²⁹ molecules

Answer 1