This page lists examples of the orders of magnitude of molar concentration. Source values are parenthesized where unit conversions were performed.

M denotes the non-SI unit molar: 1 M = 1 mol/L = 103 mol/m3.

All orders

+List of orders of magnitude for molar concentration Factor (Molarity) SI prefix Value Item 10−24 yM 1 elementary entity per litre ÷ NA ≈ airborne bacteria in the upper troposphere () 10−23 10−22 10−21 zM solar neutrinos on Earth () 10−20 radon in ambient, outdoor air in the United States ( ≈ ) 10−19 indoor radon at the EPA's "action level" ( ≈ ) cosmic microwave background photons in outer space () 10−18 aM 10−17 10−16 10−15 fM bacteria in surface seawater () 10−14 virions in surface layer North Atlantic seawater () gold in seawater 10−13 10−12 pM normal range for erythrocytes in blood in an adult male ()Reference ranges for blood tests 10−11 gold in undersea hydrothermal fluids 10−10 upper bound for healthy insulin when fasting 10−9 nM inhaled osmium tetroxide is immediately dangerous to life or health () 10−8 10−7 hydronium and hydroxide ions in pure water at (pKW = 13.99) 10−6 μM 10−5 10−4 normal range for uric acid in blood inhaled carbon monoxide induces unconsciousness in 2–3 breaths and death in < () 10−3 mM normal range of hydronium ions in stomach acid (pH 1.5–3.5) upper bound for healthy blood glucose when fasting upper bound for healthy blood glucose 2 hours after eating 10−2 cM neutrinos during a supernova, from the core (1058 over ) pure ideal gas at and Vm = 8.3145 × 273.15 / 101.325 = 22.414 dm3/mol 10−1dM sodium ions in blood plasma sodium ions in seawater0.469 mol/kg at an average density of 1.025 kg/L 100 M 1 Mstandard state concentration for defining thermodynamic activity101daM17.5 Mpure (glacial) acetic acid (1.05 g/cm3) pure solid hydrogen () pure water at , temperature of its maximum density ()102hM pure osmium at () pure copper at () 103 kM 104 helium in the solar core ( ⋅ ) 105 106 MM 107 108 nuclei in a white dwarf from a progenitor star () 109 GM 1010 1011 1012 TM 1013 1014 1015 PM 1016 1017 nucleons in atomic nuclei ( = ) 1018 EM ... 1077 the Planck concentration (), inverse of the Planck volume

SI multiples

See also Molarity Osmolarity Metric system Scientific notation

References