// multi-utility computation suite · offline · instant · precise
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sci.molar-mass-mixture Calculator
Calculates the molar mass of a gas mixture from component molar masses and mole fractions: M_mix = Σxᵢ Mᵢ. Air molar mass: 0.79×28 + 0.21×32 = 28.96 g/mol — used to convert between mass and volume flow rates and to calculate ideal gas properties of mixtures.
Inputs
M1 G Mol
Mass of one mole of the substance (g/mol). Found by summing atomic weights. Converts between grams and moles.
X1 Pct
Reference formula or conversion factor shown for context.
M2 G Mol
Mass of one mole of the substance (g/mol). Found by summing atomic weights. Converts between grams and moles.
X2 Pct
Reference formula or conversion factor shown for context.
Results
mixture molar mass (g/mol)
The computed mass of the object or substance.
density at STP (kg/m³)
The value at the specified point or condition.
M_mix = Σ(xᵢ·Mᵢ)
Reference formula or conversion factor shown for context.
air molar mass reference
The computed mass of the object or substance.
mole fraction check
A pass/fail verification against the applicable code, standard, or threshold.