381,049 views
12 votes
12 votes
elemental phosphorus occurs as tetratomic molecules, p4. What mass in grams of chlorine gas is need to react completely with 455g of phosphorus to form phosphorus pentachloride?

User Mikael Jagan
by
2.8k points

1 Answer

9 votes
9 votes

P₄ + 10Cl₂ → 4PCl₅

mol P₄ = 455 : 123.895 g/mol = 3.672

mol Cl₂ = 10 x 3.672 = 36.72

mass Cl₂ = 36.72 x 71 g/mol = 2607.12 g

User Techjourneyman
by
3.1k points