mol/dm³

mole per cubic decimeter

Molar concentrationexact by definition

The mole per cubic decimeter is exactly 1000 mol/m³, the same as mol/L and the same as one molar. It is the form IUPAC recommends and the form UK and Commonwealth chemistry teaching uses throughout, because the cubic decimetre is coherent with the metre while the litre is a tolerated outsider.

1 mol/dm³ 1 M