Molecular (molar) mass calculator

Units:
Molar (molecular) mass: Mr(AgNO3) = Ar(Ag) × 1 + Ar(N) × 1 + Ar(O) × 3 = 107.87 × 1 + 14 × 1 + 16 × 3 = 169.87 (g/mol);
Total mass: m(AgNO3) = Mr(AgNO3) × n(AgNO3) = 169.87 × 42.4 = 7202.49 (g);
Number of molecules: N(AgNO3) = n(AgNO3) × NA = 42.4 × 6.02 × 1023 = 255.25 × 1023;
ω (Ag) = Ar(Ag) × n ÷ Mr(AgNO3) × 100% = 107.87 × 1 ÷ 169.87 × 100% = 63.5%;
ω (N) = Ar(N) × n ÷ Mr(AgNO3) × 100% = 14 × 1 ÷ 169.87 × 100% = 8.24%;
ω (O) = Ar(O) × n ÷ Mr(AgNO3) × 100% = 16 × 3 ÷ 169.87 × 100% = 28.26%;