Find the mass in grams of 4.48 liters of F2 gas at STP

Mass = 7.6 g

Explanation:

Given dа ta:

Volume of F₂ gas = 4.48 L

Standard Temperature = 273 K

Standard Pressure = 1 atm

Mass of gas = ?

Solution:

PV = nRT

P = pressure

V = Volume

n = number of moles

R = general gas constant

T = temperature

n = PV/RT

n = 1 atm*4.48 L / 0.0821 atm. L / mol. K * 273 K

n = 4.48 atm. L / 22.4 atm. L/mol

n = 0.2 mol

Mass of F₂ gas:

Mass = number of moles * molar mass

Mass = 0.2 mol * 38 g/mol

Mass = 7.6 g