molecular formula

简明释义

分子式

英英释义

例句

1.The Molecular Formula 分子式 of water is H2O.

水的Molecular Formula 分子式是H2O。

2.Chemists often use the Molecular Formula 分子式 to identify compounds.

化学家常用Molecular Formula 分子式来识别化合物。

3.The Molecular Formula 分子式 of glucose is C6H12O6.

葡萄糖的Molecular Formula 分子式是C6H12O6。

4.To determine the structure of a compound, you first need its Molecular Formula 分子式.

要确定化合物的结构，首先需要它的Molecular Formula 分子式。

5.The Molecular Formula 分子式 for ethanol is C2H5OH.

乙醇的Molecular Formula 分子式是C2H5OH。

作文

The study of chemistry often introduces students to various concepts that are fundamental to understanding the composition of substances. One of the key concepts is the molecular formula, which is essential for identifying the types and numbers of atoms in a molecule. A molecular formula provides a concise way to represent the composition of a chemical compound, indicating the elements present and the quantity of each element. For example, the molecular formula of water is H₂O, which means that each molecule of water consists of two hydrogen atoms and one oxygen atom.Understanding the molecular formula is crucial not only for students but also for professionals in the field of chemistry. It allows chemists to communicate complex information about compounds in a simple format. The molecular formula serves as a foundation for further studies, including stoichiometry, reactions, and even the development of new materials.In addition to its practical applications, the molecular formula also has theoretical implications. By analyzing the molecular formula of a substance, scientists can infer its properties, reactivity, and potential applications. For instance, knowing the molecular formula of a drug can help researchers understand how it interacts with biological systems, which is vital for pharmaceutical development.Moreover, the molecular formula can differ from the empirical formula, which represents the simplest whole-number ratio of atoms in a compound. For example, the molecular formula of glucose is C₆H₁₂O₆, while its empirical formula is CH₂O. This distinction highlights the importance of understanding the context in which a molecular formula is used.In conclusion, the molecular formula is a fundamental concept in chemistry that encapsulates the essence of a chemical compound's composition. It plays a pivotal role in both academic and practical applications, enabling scientists to communicate effectively about substances and their properties. As students delve deeper into the world of chemistry, mastering the concept of the molecular formula will undoubtedly enhance their understanding and appreciation of the science behind the materials that make up our world.

化学研究常常向学生介绍一些基本概念，这些概念对于理解物质的组成至关重要。其中一个关键概念是分子式，它对于识别分子中原子的种类和数量至关重要。分子式提供了一种简洁的方式来表示化合物的组成，指示出存在的元素及其数量。例如，水的分子式是H₂O，这意味着每个水分子由两个氢原子和一个氧原子组成。理解分子式对于学生和化学领域的专业人士都至关重要。它使化学家能够以简单的格式传达关于化合物的复杂信息。分子式是进一步研究的基础，包括化学计量学、反应，甚至新材料的开发。除了其实际应用外，分子式还具有理论意义。通过分析物质的分子式，科学家可以推断出其性质、反应性和潜在应用。例如，知道一种药物的分子式可以帮助研究人员理解它如何与生物系统相互作用，这对于药物开发至关重要。此外，分子式可能与经验式不同，经验式表示化合物中原子的最简整数比。例如，葡萄糖的分子式是C₆H₁₂O₆，而其经验式是CH₂O。这一区别突显了理解分子式使用背景的重要性。总之，分子式是化学中的一个基本概念，它概括了化学化合物组成的本质。它在学术和实际应用中发挥着关键作用，使科学家能够有效地交流有关物质及其性质的信息。随着学生深入探索化学世界，掌握分子式的概念无疑会增强他们对构成我们世界的材料背后科学的理解和欣赏。