stoichiometry

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数据源: ai_enrichment
化学计量学是研究化学反应中物质质量、摩尔数等定量关系的学科,用于精确计算反应物和产物的比例。

用法要点

句型搭配

通常作为不可数名词使用,在句子中作主语或宾语,常用于描述化学计算过程或原理。

• The stoichiometry of the reaction is crucial.
• Understanding stoichiometry helps in balancing equations.

介词用法

常与介词'of'连用表示所属关系,如'stoichiometry of a reaction';也可用'in'表示在某个领域中的应用。

• stoichiometry of combustion
• stoichiometry in chemical engineering

语域说明

主要用于学术和科技语境,如化学、工程领域;日常对话中较少使用,属于专业术语。

• academic papers on stoichiometry
• technical reports involving stoichiometry

基础例句

In our chemistry class, we learned how to use stoichiometry to predict product amounts.

在化学课上,我们学习了如何用化学计量学来预测产物量。

Can you explain the stoichiometry behind this reaction? It seems confusing.

你能解释一下这个反应背后的化学计量学吗?看起来有点复杂。

I need to review stoichiometry before the exam because it's a key topic.

考试前我得复习一下化学计量学,因为这是个重点内容。

高级例句

The research paper discusses the stoichiometry of catalytic processes in industrial applications.

这篇研究论文讨论了工业应用中催化过程的化学计量学。

Accurate stoichiometry is essential for optimizing pharmaceutical synthesis and reducing waste.

精确的化学计量学对于优化药物合成和减少废物至关重要。

Engineers use stoichiometry to design efficient combustion systems in power plants.

工程师利用化学计量学来设计发电厂中高效的燃烧系统。

高频搭配

verb

calculate stoichiometrydetermine stoichiometryapply stoichiometrystudy stoichiometryunderstand stoichiometry

adjective

chemical stoichiometryreaction stoichiometryprecise stoichiometrybasic stoichiometrycomplex stoichiometry

noun

stoichiometry calculationstoichiometry principlestoichiometry problemstoichiometry conceptstoichiometry analysis

adverb

accurately in stoichiometrytheoretically in stoichiometrypractically in stoichiometry

preposition

stoichiometry ofstoichiometry instoichiometry for

phrase

stoichiometry and balancing equationsstoichiometry in chemical reactionsstoichiometry for beginners

常见错误

❌ 错误:The stoichiometry are important for chemistry.
✓ 正确:The stoichiometry is important for chemistry.

错误:stoichiometry 是不可数名词,谓语动词应用单数形式 is,而不是复数 are。改正:将 are 改为 is。

❌ 错误:I need to learn about the stoichiometry on reaction.
✓ 正确:I need to learn about the stoichiometry of the reaction.

错误:介词使用不当,stoichiometry 通常与 of 连用表示所属关系,而不是 on。改正:将 on 改为 of。

近义词辨析

chemical calculation

chemical calculation 泛指化学计算,可能包括各种数学运算;stoichiometry 特指基于化学方程式的定量关系计算,更专业和精确。

Chemical calculation might involve simple arithmetic, while stoichiometry focuses on mole ratios in reactions.

quantitative analysis

quantitative analysis 是分析化学中测定物质含量的广泛方法;stoichiometry 是其中基于反应方程式计算的理论部分,强调比例关系。

Quantitative analysis includes techniques like titration, whereas stoichiometry provides the theoretical basis for such calculations.