Why is H3O+ the strongest acid and OH− the strongest base? Arrhenius Concept:Arrhenius concept states that, the substances that, when dissociated in water, produces hydrogen ions are acids. The substances that, when dissociated in water, produces hydroxide ions are bases....
Is sulphurous acid an acid or base? Unlike sulphuric acid (H2SO4), sulphurous acid (H2SO3) isa weak acid; that is, aqueous sulphurous acid acid does not dissociate entirely into H+ (H3O+) and bisulfite ions, meaning that the bisulfite ion is comparatively stronger in maintaining a proton w...
This protonation can be effected by an arginine residue (Arg37) in close proximity to the substrate. In this report, we present evidence for the function of this arginine residue as a general acid catalyst. Although substrate protonation by H3O+ is both exergonic and very fast, our density ...
What is the pH of an 8.88 x 10-5 M solution of the strong acid HNO3? HNO3(aq) + H2O(l) arrow NO3-(aq) + H3O+(aq) In an aqueous solution, classify the compound as a strong acid, weak acid, strong base, weak b...
What ions and / or molecules are present in relatively large proportions in a solution of a strong acid HI (aq)? Which of the following acids will have the highest K_a value? a) NaH b) H_2S c) H_2S Which of the fo...
what is the percent dissociation of acetic acid in a 0.1M solution if the [H3O+] is 1*10-3 mole/liter?相关知识点: 试题来源: 解析 翻译:0.1 M的乙酸溶液,H+浓度是1*10-3 mol/L,求醋酸的电离度. pH=3,水的电离可以忽略,那么电离出的氢离子全部来自乙酸. 电离度=已经电离的乙酸/全部乙酸=...
acid-base c. precipitation Determine whether or not the following reaction involves oxidation and reduction. If not, what type of reaction is it? MnO2 + HCl arrow Cl2 + H2O + MnCl2 Determine whether or not the following reaction involves oxidation and reduction...
Natural anti-oxidants such as ascorbic acid, α-tocopherol, carotenoids, minerals, and polyphenols are from commonly consumed fruits, vegetables, beverages, cereals, and other food products. Across the quintiles of OBS, incremental increases in food-based anti-oxidants and decreases in pro-oxidants ...
Another trial using daily consumption of a nutritional formula enriched in EPA (3 g/day), gamma-linolenic (GL) acid (1.6 g/day) and antioxidants showed improvement in asthma symptom-free days, but there was no difference compared with placebo [163]. 5.2.3. Vitamin C and D: Possible ...
The plates were fixed and stained for tartrate-resistant acid phosphatase (TRAP) with an Acid Phosphatase Leukocyte Diagnostic Kit from Sigma-Aldrich (St. Louis, MO, USA) following the manufacture's protocol. For whole-cell protein lysate, OCPs were plated at 1 × 105 cells per well in a ...