The amount of volume (mL) in a balloon containing 1230 mg of nitrogen gas at standard temperature and pressure is 990mL.
The amount of volume in a gas at standard temperature and pressure can be calculated using the following formula:
PV = nRT
Where;
- P = pressure
- V = volume
- n = number of moles
- T = temperature
- R = gas law constant
At S.T.P, P = 1atm, T = 273K
number of moles in nitrogen gas = 1.23g ÷ 28g/mol = 0.044mol
1 × V = 0.044 × 0.0821 × 273
V = 0.99L = 990mL