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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 often observed in 1 H and 31 P NMR spectroscopy (e.g., for Pt-phosphine and Pt-alkyl ...
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 The PT ratio varies depending on the specific reagents used, and has been replaced by the INR.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]
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).
F 2 Pt: platinum difluoride: 18820-56-9 F 2 Pu: plutonium difluoride: 20882-15-9 F 2 S: sulfur difluoride: 13814-25-0 F 2 SW: tungsten difluoride monosulfide: 41831-78-1 F 2 S 2: difluorodisulfane: 13709-35-8 F 2 S 2: thiothionyl fluoride: 16860-99-4 F 2 S 2: thiothionyl fluoride: 101947-30-2 F 2 S 2 W: tungsten difluoride disulfide: 41831-81-6 ...
[3] [4] [1] The Pt-Pt distance in Krogmann's salt is only 0.1 angstroms longer than in platinum metal. [5] Each unit cell contains a site for Cl −, corresponding to 0.5 Cl − per Pt. [1] However, this site is only filled 64% of the time, giving 0.32 Cl − per Pt in the actual compound. Because of this, the oxidation number of Pt does not ...
Xenon hexafluoroplatinate is the product of the reaction of platinum hexafluoride with xenon, in an experiment that proved the chemical reactivity of the noble gases.This experiment was performed by Neil Bartlett at the University of British Columbia, who formulated the product as "Xe + [PtF 6] −", although subsequent work suggests that Bartlett's product was probably a salt mixture and did ...
The relative activity of a species i, denoted a i, is defined [4] [5] as: = where μ i is the (molar) chemical potential of the species i under the conditions of interest, μ o i is the (molar) chemical potential of that species under some defined set of standard conditions, R is the gas constant, T is the thermodynamic temperature and e is the exponential constant.
A plot illustrating the dependence on temperature of the rates of chemical reactions and various biological processes, for several different Q 10 temperature coefficients. . The rate ratio at a temperature increase of 10 degrees (marked by points) is equal to the Q 10 coefficie