Log In Sign Up Subjects Science Chemistry Acid dissociation constant Given that Ka for HCN is 6.2 x 10^-10 at 25 C, what is the value of Kb for CN- at 25 C?Question: Given that Ka for HCN is 6.2x10−10 at 25 degrees Celsius, what is the...
The Royal Society of ChemistryCheminformKatryniokBKimuraHSkrzyńskaEGirardonJ-SFongarlandPCapronMDucoulombierRMimuraNPaulSDumeignilF 2011 Green Chem. 13 1960 10.1039/c1gc15320jKatryniok B, Kimura H, Skrzynska E, Girardon J-S, Fongarland P, Capron M, Ducoulombier R, Mimura N, Paul S,...
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Serum p-tau231 separated diagnostic groups with area under the curve (AUC) of 82.2% (cohort 3) to 88.2% (cohort 1) compared with 90.2% (cohort 1) for plasma. Similarly, p-tau181 showed AUC of 89.6% (cohort 1) to 89.8% (cohort 3) in serum versus 85.4% in plasma (cohort 1). ...
Although the catalyst-free concept has been extensively used in synthetic chemistry, this paradigm remains underexplored in the domain of CO2 conversion. Therefore, here we review catalyst-free chemical and photochemical fixation of CO2 for the manufacture of products such as ureas, carbamates, ...
To calculate the pH of a 0.1 M solution of ammonia (NH₃) with a given Kb value of 1.8 x 10^(-5), follow these steps: Step 1: Calculate pKbThe relationship between Kb and pKb is given by:pKb=−log(Kb)Substituting the value of Kb:pKb=−log(1.8×10−5)Using a calculator,...
Best practices in perovskite solar cell efficiency measurements. Avoiding the error of Making Bad Cells Look Good 2015, Journal of Physical Chemistry Letters Advanced materials and processes for polymer solar cell devices 2010, Journal of Materials Chemistry The impact of polymer regioregularity on charge...
Plastic pollution is a major environmental issue worldwide, calling for advanced methods to recycle waste plastics in the context of the circular economy. Here we review methods and strategies to convert waste plastics into value-added carbon materials, with focus on sources, properties, pretreatment...
The UV–vis spectra of the collected liquid extract indicated the presence of some wood biomass-derived compounds. The FT-IR spectra revealed that the functional group compositions of the wood chip biomass samples before and after DME dewatering were identical. In addition, the heating value ...
The wavelength of de-Broglie wave associated with a thermal neutron of mass m kg at 270C is (KB is the Boltzmann constant and all quantities are in SI units) Ah√100mKBmetre Bh√900mKBmetre Ch√400mKBmetre Dh√300mKBmetreSubmit The Boltzmann constant (KB) is: ARNA BNAR CRNA DRNA×...