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The prothrombin time ratio is the ratio of a subject's measured prothrombin time (in seconds) to the normal laboratory reference PT. The PT ratio varies depending on the specific reagents used, and has been replaced by the INR. [3] Elevated INR may be useful as a rapid and inexpensive diagnostic of infection in people with COVID-19. [4]
[4] If excess acids are removed, PtCl 4 crystallizes from aqueous solutions in large red crystals of pentahydrate PtCl 4 ·5(H 2 O), [5] which can be dehydrated by heating to about 300 °C in a current of dry chlorine. The pentahydrate is stable and is used as the commercial form of PtCl 4. Treatment of PtCl 4 with aqueous base gives the [Pt(OH ...
Quantities, Units and Symbols in Physical Chemistry, also known as the Green Book, is a compilation of terms and symbols widely used in the field of physical chemistry. It also includes a table of physical constants , tables listing the properties of elementary particles , chemical elements , and nuclides , and information about conversion ...
Pt, 192 Pt, 194 Pt, 195 Pt, 196 Pt, and 198 Pt. The most abundant of these is 195 Pt, comprising 33.83% of all platinum. It is the only stable isotope with a non-zero spin. The spin of 1 / 2 and other favourable magnetic properties of the nucleus are utilised in 195 Pt NMR. Due to its spin and large abundance, 195 Pt satellite peaks are also ...
The labeling is arbitrary in initial choice, but once chosen fixed for the calculation. If any reference to an actual entity (say hydrogen ions H +) or any entity at all (say X) is made, the quantity symbol q is followed by curved ( ) brackets enclosing the molecular formula of X, i.e. q(X), or for a component i of a mixture q(X i).
n[Pt(CN) 4] 2− → ([Pt(CN) 4] 1.7−) n. Krogmann's salt is a series of partially oxidized tetracyanoplatinate complexes linked by the platinum-platinum bonds on the top and bottom faces of the planar [Pt(CN) 4] n− anions. This salt forms infinite stacks in the solid state based on the overlap of the d z2 orbitals. [2]
Beryllium 4 Be 9.0122: Boron 5 B ... Platinum 78 Pt ... This periodic table is the prime form presented at this English wikipedia. See Periodic table#Overview. Usage.
Psi is an ab initio computational chemistry package originally written by the research group of Henry F. Schaefer, III (University of Georgia).Utilizing Psi, one can perform a calculation on a molecular system with various kinds of methods such as Hartree-Fock, Post-Hartree–Fock electron correlation methods, and density functional theory.