I am having problems solving what appears to be a simple dissociation problem:The pH of an acid mine drainage through which hydrogen sulfide bubbles continuously is measured and found to have a value of pH = 3.7. Estimate the Concentration of S2- in this water.Answer: 3 x 10-15 mol/L...
When dissolved in water, acids produce what? Hydrosulfuric acid, H2S, is a weak acid whose Ka value is 9.5x10^-8. What is the pH of a 4.0M solution of H2S? what is the dissociation reaction of H2SO3 and H2SO4? Complete the reaction then give the expression for the ...
consisting of low-density gas-rich (V) and aqueous 2-phase inclusions (L + V), evidence precipitation of fluorite in the presence of methane, inorganic gases (H2S, CO2, N2) as well as small proportions of a high salinity brine. The...
H2S molecules exhibit stronger competitiveness in co-adsorption with water molecules. Moreover, because the interaction of H-S in H2S molecules can be weakened by hydrogen bonds with water and stronger Fe-H owing to water adsorption on the surface, the induced lower dissociation barriers can be ...
A theoretical study of the ionic dissociation of HF, HCl, and H2S in water clusters The calculations show that HF, HCl, and H2S form fully dissociated stable clusters with four water molecules. Each cluster appears to be stabilized by ... C Lee,C Sosa,M Planas,... - 《Journal of Chemi...
Dissociation energy The dissociation energy,D0, is obtained using an extrapolated value ofDeof 583 cm−1at the CCSD(T) complete basis set (CBS) limit (details in Supplementary Table6), plus twice the zero-point energy (ZPE) of the isolated H2S monomer minus the zero-point energy of the...
The adsorption and dissociation mechanisms of H2S on a TiO2 (001) surface were elucidated using first principles calculation based on the density functional theory. The interaction of the intermediates involving S, HS and OH species has been discussed in detail. For these species, the most favorabl...
All experiments were performed within 24 h of dissociation. HEK 293t cells were transfected with plasmids of hTRPV1, hTRPA1, mTRPA1 or mutant hTRPA1 (1 mg each) using Nanofectin (PAA, Pasching, Austria). Twenty-four hours after transfection cells were plated on coated coverslips and ...
ZnO has double roles during the desulfurization of H2S, one is as a catalyst to accelerate the dissociation of H2S, and the other is as the reactant participating in the reaction of H2S with ZnO leading to the formation of H2O. It is the first reason that the desulfurizer is different ...
The tissue was chopped and digested with 0.25% trypsin (Sigma-Aldrich) and 0.1% DNase I (Sigma-Aldrich) in Ca2+/Mg2+-free PBS for 15 min at 37 °C. After mechanical dissociation, cells were plated onto poly-D-lysine-coated 35 mm dishes (BD Biosciences, San Jose, CA, USA) ...