concentrate有“(使)浓缩”之意;focus是“将注意力集中在什么上”的意思;take in意为“吸收”;expand意为“膨胀”。译文当酸性溶液里含有很多酸时,它就被浓缩了。答案A 结果一 题目 【题目】An acid solution iswhen it has very much acid in it.A.concentratedB. focusedC. taken inD.expanded 答案 【...
Carbonic Acid refers to the relatively large equilibrium concentration of H2CO3 in the soil solution, resulting in a more acidic pH due to the high concentrations of CO2 in the interstitial atmosphere in the forest floor and organic-rich soil. ...
Fig.6.2. Amino acid and its functional groups Because amino acid ion is characterized by basic and acidic groups, it can inhibit the change of pH value of the solution during the low temperature storage and freeze-drying of biological products to protect the active components. View chapterExplore...
1 You are provided with a solution of an organic acid which is known to be one of the following.methanoic acid, HCOOH propanoic acid, C2HCOOH pent-2-enoic acid, CH CH2CH=CHCOOH The solution was made by dissolving 1.85 g of acid in 250 cm3 of solution.You are to suggest the identity...
The Lewis Acid-Base Concepts: An Overview, W. B. Jensen 路易斯酸碱的概念:总览 作者:W.B.Jensen PREFACE 前言 This is not a specialist monograph dealing with the preparation, structure, and spectra of Lewis acid-base adducts or donor-acceptor complexes, nor is it truly a textbook. Rather it...
Gamma ionizing radiation (IR) is another factor that can cause gastric ulcer in rats. Exposure to gamma radiation can result in failure of the parietal cells to respond to the direct stimulation by histamine or pentagastrin, leading to a decrease in gastric acid secretion and gastric mucosal int...
HOD and EOD devices without and with PBO operated at a constant current. Full size image To verify whether this is the case experimentally, we fabricated the pure blue devices using a solution-processed organic-inorganic hybrid QD-LED architecture: ITO/PEDOT:PSS (18 nm)/TFB (18 nm)/...
Answer and Explanation: Become a Study.com member to unlock this answer! Create your account View this answer If the constituting anion of a salt is the conjugate base of a weak acid, the solubility of the corresponding salt increases in a...
The Acid Dissociation Constant (pKa) is a measure used to analyze the molecular structure and reaction mechanisms of amino acids and alkanolamines in an aqueous solution. It determines whether the functional group of an amino acid is protonated or deprotonated based on the pH of the system. ...
5.2.4Uric acid The other major water soluble antioxidant found abundantly in blood plasma (160-450 μM) [48] isuric acid. Although uric acid has a similar order of radical trapping activityto ascorbic acid in aqueous solution [75,76], unlike the latter, it appears to play only a minor ...