The volume, in liters, occupied by 2.50 moles of N2 gas.

calculate at STP

The volume occupied by 2.50 moles of gas at STP is 56.0L

Explanation:

According to ideal gas equation:

P = pressure of gas = 1 atm (at STP)

V = Volume of gas = ?

n = number of moles = 2.50

R = gas constant =

T =temperature =  (at STP)

Thus the volume occupied by 2.50 moles of gas at STP is 56.0L

your answer would be a. 12.5 kg

i think it is true since you can test the answer and can use observations to complete it.