Answer:
Molar mass = 31.64 g/mol
Explanation:
Given data:
Mass of gas = 3.48 g
Volume of gas = 1.52 L
Temperature of gas = 265 K
Pressure of gas = 1.63 atm
Molar mass of gas = ?
Solution:
Formula:
Molar mass = Mass/ number of moles
First of all we will calculate the number of moles from given data.
PV = nRT
P = pressure
V = volume
n = number of mole
R = ideal gas constant
T = Temperature
n = PV/RT
n = 1.63 atm × 1.52 L / 0.0821 atm. L /mol.K ×265 K
n = 2.48 / 21.76/mol
n = 0.11 mol
Molar mass:
Molar mass = Mass/ number of moles
Molar mass = 3.48 g / 0.11 mol
Molar mass = 31.64 g/mol
