Answer:
0.28125 moles
Explanation:
At STP (standard temperature and pressure), 1 mole of gas occupies 22.4 L.
Amount of gas
= 6.3 ÷22.4
= 0.28125 mol
Extra notes:
• The above is only true for ideal gases
• STP is when the temperature is 0°C and the pressure is 1 atm
