Answer:
5.40 g
Explanation:
Data: P= 0.998 atm, V= 1.0L, T= 295 K, n= ?
- use ideal gas law PV= nRT to solve for n. Rearranging the formula gives, n= PV ÷ RT
- substitute the values into the formula, n= 0.998 atm × 1.0 L ÷ 0.08206 L• atm/mol•K ×295 K
- all units will cancel and n= 0.0412 mol
- now solve for mass using n=mass ÷ Molar mass
- m= n × Mm
- Mm of iodine= 131 g/mol
- m= 0.0412mol × 131 g/mol
- m= 5.40 g
