Is 0.1M and 100mM equal

Answer 1

Yes, 0.1 M (molar) and 100 mM (millimolar) are equal concentrations. This is because 1 M is equivalent to 1000 mM, so 0.1 M is equal to 0.1 x 1000 mM, which equals 100 mM. Therefore, both expressions represent the same concentration of a solution.