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Molar Mass of Gas Calculator
Calculate the molecular weight of a gas using the Ideal Gas Law
Formula: M = (m × R × T) / (P × V)
Derived from PV = nRT where n = m / M. Uses R = 0.08206 L·atm/(mol·K).
Derived from PV = nRT where n = m / M. Uses R = 0.08206 L·atm/(mol·K).
Gas Sample Parameters
Calculation Results
⚠️ Calculations assume ideal gas behavior. At very high pressures or extremely low temperatures (near liquefaction), real gases deviate from ideal behavior due to intermolecular forces and molecular volume, requiring the Van der Waals equation for exact results.