| 单词 | stoichiometry |
| 例句 | This stoichiometry goes for you and for each of your fellow passengers on the flight. 10 Ways to Be a Greener Traveler, Even if You Love to Fly 2016-04-19T04:00:00Z Phytoplankton stoichiometry defines the relative proportions of different elements such as C, N, and P in these organisms. What phytoplankton physiology has to do with global climate 2023-10-13T04:00:00Z Therefore, these measurements are useful in assessing the stoichiometry of pure gases, gas mixtures, and chemical reactions involving gases. Chemistry 2019-02-14T00:00:00Z The study relies on stoichiometry, which measures the elemental ratios that appear in the chemistry of cells and ecosystems. New Approach Could Boost the Search for Life in Otherworldly Oceans 2021-07-16T04:00:00Z I’ve heard from chemists, fishery biologists and people who study chemical stoichiometry. What publishing as a lead author has taught me 2019-12-15T05:00:00Z Influence of stoichiometry on the optical and electrical properties of chemical vapor deposition derived MoS2. Multi-terminal memtransistors from polycrystalline monolayer molybdenum disulfide 2018-02-20T05:00:00Z A conceptual framework for ecosystem stoichiometry: balancing resource supply and demand. Nutrient co-limitation at the boundary of an oceanic gyre 2017-10-31T04:00:00Z In order to discern what shift, if any, this type of stress will induce the stoichiometry of the reaction must be considered. Chemistry 2019-02-14T00:00:00Z Satisfying the charge-neutral conditions when selecting the intended stoichiometry of the quantum dots — similar to electron counting rules that describe the reconstruction of flat surfaces — offers a maximum opening of the quantum-dot bandgap. Materials interface engineering for solution-processed photovoltaics 2012-08-15T17:22:03.163Z If a metal can exhibit two oxidation states, it may be necessary to control the stoichiometry in order to obtain the halide with the lower oxidation state. Chemistry 2019-02-14T00:00:00Z For any given reaction, these rate expressions are all related simply to one another according to the reaction stoichiometry. Chemistry 2019-02-14T00:00:00Z Show that the mechanism is consistent with the observed rate law for the reaction and the overall stoichiometry of the reaction. Chemistry 2019-02-14T00:00:00Z Combine steps 1 and 2 with step 3, which occurs by supposition in a rapid fashion, to give the appropriate stoichiometry. Chemistry 2019-02-14T00:00:00Z For this elementary process, rate laws for the forward and reverse reactions may be derived directly from the reaction stoichiometry: Chemistry 2019-02-14T00:00:00Z Since this is an elementary reaction, the rates laws for the forward and reverse may be derived directly from the balanced equation’s stoichiometry: Chemistry 2019-02-14T00:00:00Z These terms are derived from the stoichiometry of the reaction, as illustrated by decomposition of ammonia: Chemistry 2019-02-14T00:00:00Z Convert mass of ethanol to moles of ethanol; relate the moles of ethanol to the moles of ether produced using the stoichiometry of the balanced equation. Chemistry 2019-02-14T00:00:00Z The reader may wish to review the discussion of strong and weak acids provided in the earlier chapter of this text on reaction classes and stoichiometry. Chemistry 2019-02-14T00:00:00Z Figure 4.11 provides a general outline of the various computational steps associated with many reaction stoichiometry calculations. Chemistry 2019-02-14T00:00:00Z This volume is then used to calculate the concentration of analyte in the sample using the stoichiometry of the titration reaction. Chemistry 2019-02-14T00:00:00Z Metathesis reactions are examined in the chapter on the stoichiometry of chemical reactions. Chemistry 2019-02-14T00:00:00Z As described in an earlier chapter of this text, we can turn to chemical stoichiometry for answers to many of the questions that ask “How much?” Chemistry 2019-02-14T00:00:00Z It is important to note that rate laws are determined by experiment only and are not reliably predicted by reaction stoichiometry. Chemistry 2019-02-14T00:00:00Z These examples illustrate the ease with which the amounts of substances involved in a chemical reaction of known stoichiometry may be related. Chemistry 2019-02-14T00:00:00Z These examples illustrate just a few instances of reaction stoichiometry calculations. Chemistry 2019-02-14T00:00:00Z Each reactant amount is used to separately calculate the amount of product that would be formed per the reaction’s stoichiometry. Chemistry 2019-02-14T00:00:00Z The percent yield of a given chemical process, on the other hand, evaluates the efficiency of a process by comparing the yield of product actually obtained to the maximum yield predicted by stoichiometry. Chemistry 2019-02-14T00:00:00Z Readers wishing additional review are referred to the text chapter on reaction stoichiometry. Chemistry 2019-02-14T00:00:00Z Mass measurements of the sample, the isolated analyte, or some other component of the analysis system, used along with the known stoichiometry of the compounds involved, permit calculation of the analyte concentration. Chemistry 2019-02-14T00:00:00Z One cesium ion and one chloride ion are present per unit cell, giving the l:l stoichiometry required by the formula for cesium chloride. Chemistry 2019-02-14T00:00:00Z The unit cell contains four sodium ions and four chloride ions, giving the 1:1 stoichiometry required by the formula, NaCl. Chemistry 2019-02-14T00:00:00Z Rate laws are determined experimentally and cannot be predicted by reaction stoichiometry. Chemistry 2019-02-14T00:00:00Z The stoichiometry of the hydrate varies, as indicated by the use of x in the compound formula. Chemistry 2019-02-14T00:00:00Z |
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