Search results
Results from the WOW.Com Content Network
In chemistry, the mass fraction of a substance within a mixture is the ratio (alternatively denoted ) of the mass of that substance to the total mass of the mixture. [1] Expressed as a formula, the mass fraction is:
The median lethal dose (LD 50) is between 15 and 18 g/kg body weight in rats and mice, respectively, five times the LD 50 of table salt (3 g/kg in rats). The use of MSG as a food additive and the natural levels of glutamic acid in foods are not of toxic concern in humans. [ 20 ]
In chemistry and physics, the dimensionless mixing ratio is the abundance of one component of a mixture relative to that of all other components. The term can refer either to mole ratio (see concentration ) or mass ratio (see stoichiometry ).
Other synthetic routes use a solid precursor with the correct stoichiometric ratio of non-volatile ions, which is heated to drive off other species. [ 8 ] In some reactions between highly reactive metals (usually from Group 1 or Group 2 ) and highly electronegative halogen gases, or water, the atoms can be ionized by electron transfer , [ 16 ...
Leblanc's contribution was the second step, in which a mixture of the salt cake and crushed limestone (calcium carbonate) was reduced by heating with coal. [6] This conversion entails two parts. First is the carbothermic reaction whereby the coal, a source of carbon, reduces the sulfate to sulfide: Na 2 SO 4 + 2 C → Na 2 S + 2 CO 2
A United States Navy Aviation boatswain's mate tests the specific gravity of JP-5 fuel. Relative density, also called specific gravity, [1] [2] is a dimensionless quantity defined as the ratio of the density (mass of a unit volume) of a substance to the density of a given reference material.
Putting Old Bay on crab legs. The seasoning is chiefly used to season crab and shrimp. [16] It is used in various clam chowder and oyster stew recipes. The seasoning is also used as a topping on popcorn, salads, eggs, fried chicken, chicken wings, french fries, tater tots, corn on the cob, boiled peanuts, dips, chipped beef, baked potatoes, potato salad, potato chips and guacamole.
Trouton's ratio is the ratio of extensional viscosity to shear viscosity. For a Newtonian fluid, the Trouton ratio is 3. [21] [22] Shear-thinning liquids are very commonly, but misleadingly, described as thixotropic. [23] Viscosity may also depend on the fluid's physical state (temperature and pressure) and other, external, factors.