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However, the names of all SI mass units are based on gram, rather than on kilogram; thus 10 3 kg is a megagram (10 6 g), not a *kilokilogram. The tonne (t) is an SI-compatible unit of mass equal to a megagram (Mg), or 10 3 kg. The unit is in common use for masses above about 10 3 kg and is often used with SI prefixes.
≡ 1 long ton × g 0 / 1 sq ft ≈ 1.072 517 801 1595 × 10 5 Pa: micrometre of mercury: μmHg ≡ 13 595.1 kg/m 3 × 1 μm × g 0 ≈ 0.001 torr ≈ 0.133 3224 Pa [33] millimetre of mercury: mmHg: ≡ 13 595.1 kg/m 3 × 1 mm × g 0 ≈ 1 torr ≈ 133.3224 Pa [33] millimetre of water (3.98 °C) mmH 2 O ≈ 999.972 kg/m 3 × 1 mm × g 0 = 0.999 ...
In the metric system, a microgram or microgramme is a unit of mass equal to one millionth (1 × 10 −6) of a gram.The unit symbol is μg according to the International System of Units (SI); the recommended symbol in the United States and United Kingdom when communicating medical information is mcg.
For example, 50 g of zinc will react with oxygen to produce 62.24 g of zinc oxide, implying that the zinc has reacted with 12.24 g of oxygen (from the Law of conservation of mass): the equivalent weight of zinc is the mass which will react with eight grams of oxygen, hence 50 g × 8 g/12.24 g = 32.7 g.
kg-f kg f: 1.0 kg f (9.8 N; 2.2 lb f) kgf kgf kilopond: kp kp gram-force: g-f g f: 1.0 g f (9.8 mN; 0.035 oz f) gf gf pond: p p milligram-force: mg-f mg f: 1.0 mg f (9.8 μN; 0.015 gr f) mgf mgf millipond: mp mp Avoirdupois-based units: poundal: pdl pdl 1.0 pdl (0.14 N) long ton-force: LT-f LT f: 1.0 LT f (10.0 kN) LT-f ST-f; LTf long ton-force ...
Atmospheric pollutant concentrations expressed as mass per unit volume of atmospheric air (e.g., mg/m 3, μg/m 3, etc.) at sea level will decrease with increasing altitude because the atmospheric pressure decreases with increasing altitude. The change of atmospheric pressure with altitude can be obtained from this equation: [2]
A solution with 1 g of solute dissolved in a final volume of 100 mL of solution would be labeled as "1%" or "1% m/v" (mass/volume). This is incorrect because the unit "%" can only be used for dimensionless quantities. Instead, the concentration should simply be given in units of g/mL.
In unit systems where force is a derived unit, like in SI units, g c is equal to 1. In unit systems where force is a primary unit, like in imperial and US customary measurement systems , g c may or may not equal 1 depending on the units used, and value other than 1 may be required to obtain correct results. [ 2 ]