Search results
Results From The WOW.Com Content Network
Metal acetylacetonates are coordination complexes derived from the acetylacetonate anion (CH. 3COCHCOCH−. 3) and metal ions, usually transition metals. The bidentate ligand acetylacetonate is often abbreviated acac. Typically both oxygen atoms bind to the metal to form a six-membered chelate ring. The simplest complexes have the formula M ...
Zinc acetylacetonate is an acetylacetonate complex of zinc, with the chemical formula of Zn (C5H7O2)2. The compound is in fact a trimer, Zn 3 (acac) 6, in which each Zn ion is coordinated by five oxygen atoms in a distorted trigonal bipyramidal structure. [5]
Zinc acetate is a salt with the formula Zn (CH 3 CO 2) 2, which commonly occurs as the dihydrate Zn (CH 3 CO 2) 2 ·2H 2 O. Both the hydrate and the anhydrous forms are colorless solids that are used as dietary supplements. When used as a food additive, it has the E number E650.
M N−1. In chemistry, the molar mass (M) (sometimes called molecular weight or formula weight, but see related quantities for usage) of a chemical compound is defined as the ratio between the mass and the amount of substance (measured in moles) of any sample of the compound. [1] The molar mass is a bulk, not molecular, property of a substance.
The specific heat of the human body calculated from the measured values of individual tissues is 2.98 kJ · kg−1 · °C−1. This is 17% lower than the earlier wider used one based on non measured values of 3.47 kJ · kg−1· °C−1. The contribution of the muscle to the specific heat of the body is approximately 47%, and the contribution ...
Zinc is a chemical element with the symbol Zn and atomic number 30. It is a slightly brittle metal at room temperature and has a shiny-greyish appearance when oxidation is removed. It is the first element in group 12 (IIB) of the periodic table.
The equivalent weight of an element is the mass which combines with or displaces 1.008 gram of hydrogen or 8.0 grams of oxygen or 35.5 grams of chlorine. The equivalent weight of an element is the mass of a mole of the element divided by the element's usual valence. That is, in grams, the atomic weight of the element divided by the usual ...
Zinc nitrate is an inorganic chemical compound with the formula Zn (NO3)2. This colorless, crystalline salt is highly deliquescent. It is typically encountered as a hexahydrate Zn (NO3)2·6H2O. It is soluble in both water and alcohol.