Kilogram-mass

P29 Adsorption - Other milligrams/kilogram (mass/mass) for solids and liquids ... 

Jeffryes, Alec, 628 Joliot, Frederic, 517 Joliot-Curie, Irfcne, 248 Joule The base SI unit of energy, equal to the kinetic energy of a two-kilogram mass moving at a speed of one meter per second, 135,635 Joule, James, 199... 

For amount-of-substance measurements we include kilogram mass units, which are linked to the amount-of-substance unit in SI by the atomic-weight values. The latter differ greatly in uncertainty for different chemical entities, but are always available, with the best estimates by current knowledge of their uncertainties,... 

In principle, Avogadro s number could be used to eliminate the standard kilogram mass. We could define Avogadro s number to be exactly 6.0221367 x 1023, then define. 012 kg as the mass of one mole of carbon-12. However, we can determine the mass of a metal weight with more accuracy than we can count this large number of atoms. 

Balances can be calibrated or verified for accuracy with special weights, called calibrated weights, whose specific mass is known. Calibrated weights vary in quality and tolerance. They are classified by type, grade, and tolerance All calibrated weights are compared directly or indirectly to the international prototype one-kilogram mass to verify their accuracy. 

The unconventional dimension of kg/m3 is the result of our consistent application of the SI rather than the older CGS system of units. The fundamental SI units are meter, kilogram (mass), second, ampere, Kelvin (K) an Candela, while force, weight, pressure etc. are derived magnitudes. For conversion tables see the back flyleaf of this volume. 

P18 Emulsion Breaking Other INote Parts per million (ppm) is milligrams/kilogram (mass/ ... 

Ca(HC03)2Al Kilogram mass of calcium bicarbonate nsed with alum as coagulant... 

Mass then can be defined as a ratio of force to acceleration. We define one kilogram to be an inertial mass that accelerates at one meter per second per second when a force of one newton is applied to it. If the same force (one newton) is applied to a two kilogram mass, its acceleration is only 0.5 meter per second per second. 

Since force and mass are different concepts, a kilogram force and a kilogram mass are different qnantities, and their nnits do not cancel one another. When an equation contains both units, kgf and kg, the dimensional constant gc must also appear in the equation to make it dimensionally correct. 

Saturated steam at 2.75 bar is throttled to 1 atm and mixed adiabatically witli (and condensed by) 45 mass-% sulfuric acid at 300.15 K (27°C) in a flow process tliat raises the temperature of the acid to 344.15 K (71 °C). How much steam is required for each kilogram mass of entering acid, and what is tlie concentration of the hot acid ... 

Earth is surrounded by an atmosphere that extends into space for hundreds of kilometers. Because the particles in air move in every direction, they exert pressure in all directions. This pressure is called atmospheric pressure, or air pressure. At the surface of Earth, air pressure is approximately equal to the pressure exerted by a 1-kilogram mass on a square centimeter. Air pressure varies at different points on Earth. At the top of a mountain, the mass of the air column pressing down on a square centimeter of Earth is less than the mass of the air column at sea level. Thus, the air pressure at higher altitudes is slightly lower than at sea level. 

C = coulomb (quantity of electricity) kg = kilogram (mass) W = watt (power)... 

Mass kilogram, kg pound mass, lbm gram, g kilogram mass, kg... 

At any place where the acceleration of gravity is equal to 32.2 ft/s = 9.81 m/s (practically any place on the surface of the earth), the specific weight expressed in pounds-force per cubic foot (or kilograms-force per cubic meter) is numerically equal to the density expressed in pounds-mass per cubic foot (or kilograms-mass per cubic meter). i... 

The kilogram mass definition cannot be realized independently of the international prototype. 

---