Question

Oxygen gas is collected in a 5.00-liter container at 25°C and 380 torr. How many moles of oxygen are present in the container?

Answer 1

Approx. `0.1*mol` `O_2(g)`

Explanation:

`n=(PV)/(RT)` `=` `((380/760*atm)xx5.00*L)/(0.0821*L*atm*K^-1*mol^-1xx298*K)` `=` `??` `mol`

Note that the answer is in moles of dioxygen, i.e. `O_2` gas. Does the given answer have units of `mol`? If it does not then somewhere I have made a mistake!

Note also that I used the conversion, `"760 mm Hg = 1 atmosphere"`.