Answer: 0.35 mole SF6
Explanation: Use ideal gas equation
Solution Attached.
At STP
Pressure = 1 atm
Temperature = 1°C + 273 = 273 K
PV= nRT derive to find n
n= PV / RT
= 1 atm x 7.9 L / 0.08205 L.atm
/mol K x 273 K
= 0.35 mole SF6
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