Orders of magnitude (molar concentration)

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

Contents

M denotes the non-SI unit molar:

1 M = 1 mol/L = 10−3 mol/m3.

All orders

List of orders of magnitude for molar concentration
Factor (Molarity) SI prefix ValueItem
10−24yM1.66 yM1 elementary entity per litre [1]
8.5 yM airborne bacteria in the upper troposphere (5100/m3) [2]
10−23
10−22
10−21zM3.6 zM solar neutrinos on Earth (6.5×1010 /cm2⋅s) [3]
10−2012 zM radon in ambient, outdoor air in the United States (0.4 pCi/L7000/L) [4]
10−19120 zMindoor radon at the EPA's "action level" (4 pCi/L70000/L) [5]
686 zM cosmic microwave background photons in outer space (413/cm3) [6]
10−18aM
10−17
10−16
10−15fM2 fM bacteria in surface seawater (1×109/L) [7]
10−1420 fM virions in surface layer North Atlantic seawater (10×109/L) [8]
50–100 fM gold in seawater [9]
10−13
10−12pM7.51–9.80 pMnormal range for erythrocytes in blood in an adult male ((4.52–5.90)×1012/L) [10] [11]
10−1110–100 pM gold in undersea hydrothermal fluids [9]
10−10170 pMupper bound for healthy insulin when fasting [12]
10−9nM5 nMinhaled osmium tetroxide is immediately dangerous to life or health (1 mg Os/m3) [13]
10−8
10−7101 nM hydronium and hydroxide ions in pure water at 25 °C (pKW = 13.99) [14]
10−6μM
10−5
10−4180–480 μMnormal range for uric acid in blood [10]
570 μMinhaled carbon monoxide induces unconsciousness in 2–3 breaths and death in < 3 min (12800 ppm) [15]
10−3mM0.32–32 mMnormal range of hydronium ions in stomach acid (pH 1.5–3.5) [16]
5.5 mMupper bound for healthy blood glucose when fasting [17]
7.8 mMupper bound for healthy blood glucose 2 hours after eating [17]
10−2cM20 mM neutrinos during a supernova, 1  AU from the core (1058 over 10 s) [18]
44.6 mMpure ideal gas at 0 °C and 101.325 kPa [19]
10−1dM140 mM sodium ions in blood plasma [10]
480 mM sodium ions in seawater [20]
100M1 M standard state concentration for defining thermodynamic activity [21]
101daM17.5 Mpure (glacial) acetic acid (1.05 g/cm3) [22]
40 Mpure solid hydrogen (86  g/L ) [23]
55.5 Mpure water at 3.984 °C, temperature of its maximum density (1.0000 g/cm3) [24]
102hM118.8 Mpure osmium at 20 °C (22.587 g/cm3) [25]
140.5 Mpure copper at 25 °C (8.93 g/cm3)
103kM
10424 kM helium in the solar core (150 g/cm365%) [26]
105
106MM
107
108122.2 MM nuclei in a white dwarf from a 3  M progenitor star (106.349 g/cm3) [27]
109GM
1010
1011
1012TM
1013
1014
1015PM
1016
1017228 PM nucleons in atomic nuclei (2.3×1017 kg/m3 = 1.37×1044/m3) [28]
1018EM
...
10773.9×1077 Mthe Planck concentration (2.4×10104/m3), inverse of the Planck volume

SI multiples

SI multiples of molar (M)
SubmultiplesMultiples
ValueSI symbolNameValueSI symbolName
10−1 MdMdecimolar101 MdaMdecamolar
10−2 McMcentimolar102 MhMhectomolar
10−3 MmMmillimolar103 MkMkilomolar
10−6 MμMmicromolar106 MMMmegamolar
10−9 MnMnanomolar109 MGMgigamolar
10−12 MpMpicomolar1012 MTMteramolar
10−15 MfMfemtomolar1015 MPMpetamolar
10−18 MaMattomolar1018 MEMexamolar
10−21 MzMzeptomolar1021 MZMzettamolar
10−24 MyMyoctomolar1024 MYMyottamolar
10−27 MrMrontomolar1027 MRMronnamolar
10−30 MqMquectomolar1030 MQMquettamolar

11.04 g/l is the concentration of sodium ions in water in other words. That’s 1.09% sodium ion!

The concentration of hydronium ions in pire water is 1.9 micrograms per liter. That’s 1.9 parts per billion of hydronium.

The normal range for hemoglobin molecules is 254.36 grams per liter or 20.27% hemoglobin. The concentration of pure water is 1 kilogram per liter or 50% water. Glacial acetic acid is 1.05 kilograms per liter or 51.2% acetic acid.

See also

Related Research Articles

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pH Measure of the level of acidity or basicity of an aqueous solution

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<span class="mw-page-title-main">Radon</span> Chemical element, symbol Rn and atomic number 86

Radon is a chemical element; it has symbol Rn and atomic number 86. It is a radioactive noble gas and is colorless and odorless. Of the three naturally occurring radon isotopes, only radon-222 has a sufficiently long half-life for it to be released from the soil and rock, where it is generated. Radon isotopes are the immediate decay products of radium isotopes. Radon's most stable isotope, radon-222, has a half-life of only 3.8 days, making radon one of the rarest elements. Radon will be present on Earth for several billion more years, despite its half-life being a mere 3.8 days, because it is constantly being produced as a step in the decay chain of uranium-238, and that of thorium-232, each of which is an extremely abundant radioactive nuclide with a half-life of several billion years. The decay of radon produces many other short-lived nuclides, known as "radon daughters", ending at stable isotopes of lead. Radon-222 occurs in significant quantities as a step in the normal radioactive decay chain of uranium-238, also known as the uranium series, which slowly decays into a variety of radioactive nuclides and eventually decays into lead-206, which is stable. Radon-220 occurs in minute quantities as an intermediate step in the decay chain of thorium-232, also known as the thorium series, which eventually decays into lead-208, which is stable.

<span class="mw-page-title-main">Salt (chemistry)</span> Chemical compound involving ionic bonding

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In chemistry, hydronium (hydroxonium in traditional British English) is the common name for the cation [H3O]+, also written as H3O+, the type of oxonium ion produced by protonation of water. It is often viewed as the positive ion present when an Arrhenius acid is dissolved in water, as Arrhenius acid molecules in solution give up a proton (a positive hydrogen ion, H+) to the surrounding water molecules (H2O). In fact, acids must be surrounded by more than a single water molecule in order to ionize, yielding aqueous H+ and conjugate base. Three main structures for the aqueous proton have garnered experimental support: the Eigen cation, which is a tetrahydrate, H3O+(H2O)3, the Zundel cation, which is a symmetric dihydrate, H+(H2O)2, and the Stoyanov cation, an expanded Zundel cation, which is a hexahydrate: H+(H2O)2(H2O)4. Spectroscopic evidence from well-defined IR spectra overwhelmingly supports the Stoyanov cation as the predominant form. For this reason, it has been suggested that wherever possible, the symbol H+(aq) should be used instead of the hydronium ion.

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Molar concentration (also called molarity, amount concentration or substance concentration) is a measure of the concentration of a chemical species, in particular, of a solute in a solution, in terms of amount of substance per unit volume of solution. In chemistry, the most commonly used unit for molarity is the number of moles per liter, having the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is said to be 1 molar, commonly designated as 1 M or 1 M. Molarity is often depicted with square brackets around the substance of interest; for example, the molarity of the hydrogen ion is depicted as [H+].

The self-ionization of water (also autoionization of water, and autodissociation of water, or simply dissociation of water) is an ionization reaction in pure water or in an aqueous solution, in which a water molecule, H2O, deprotonates (loses the nucleus of one of its hydrogen atoms) to become a hydroxide ion, OH. The hydrogen nucleus, H+, immediately protonates another water molecule to form a hydronium cation, H3O+. It is an example of autoprotolysis, and exemplifies the amphoteric nature of water.

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<span class="mw-page-title-main">Osmotic concentration</span> Molarity of osmotically active particles

Osmotic concentration, formerly known as osmolarity, is the measure of solute concentration, defined as the number of osmoles (Osm) of solute per litre (L) of solution. The osmolarity of a solution is usually expressed as Osm/L, in the same way that the molarity of a solution is expressed as "M". Whereas molarity measures the number of moles of solute per unit volume of solution, osmolarity measures the number of osmoles of solute particles per unit volume of solution. This value allows the measurement of the osmotic pressure of a solution and the determination of how the solvent will diffuse across a semipermeable membrane (osmosis) separating two solutions of different osmotic concentration.

In chemistry and fluid mechanics, the volume fraction is defined as the volume of a constituent Vi divided by the volume of all constituents of the mixture V prior to mixing:

The molar conductivity of an electrolyte solution is defined as its conductivity divided by its molar concentration.

<span class="mw-page-title-main">Acetic acid</span> Colorless and faint organic acid found in vinegar

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In chemistry, the molar absorption coefficient or molar attenuation coefficient is a measurement of how strongly a chemical species absorbs, and thereby attenuates, light at a given wavelength. It is an intrinsic property of the species. The SI unit of molar absorption coefficient is the square metre per mole, but in practice, quantities are usually expressed in terms of M−1⋅cm−1 or L⋅mol−1⋅cm−1. In older literature, the cm2/mol is sometimes used; 1 M−1⋅cm−1 equals 1000 cm2/mol. The molar absorption coefficient is also known as the molar extinction coefficient and molar absorptivity, but the use of these alternative terms has been discouraged by the IUPAC.

References

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