chemical atomic weight

简明释义

化学原子量

英英释义

例句

1.In chemistry, the chemical atomic weight is crucial for calculating molar masses.

在化学中，化学原子量对于计算摩尔质量至关重要。

2.The chemical atomic weight of hydrogen is approximately 1.008, which is essential for stoichiometric calculations.

氢的化学原子量约为1.008，这对于化学计量计算至关重要。

3.When determining the chemical atomic weight of an element, it is important to consider its isotopes.

在确定一个元素的化学原子量时，考虑其同位素是很重要的。

4.The periodic table lists each element along with its chemical atomic weight.

元素周期表列出了每个元素及其化学原子量。

5.To find the chemical atomic weight of a compound, you must sum the atomic weights of all its constituent elements.

要找到一个化合物的化学原子量，您必须将所有组成元素的原子量相加。

作文

The concept of chemical atomic weight is fundamental in the field of chemistry and plays a crucial role in understanding the properties of elements and compounds. The chemical atomic weight of an element is defined as the weighted average mass of the atoms in a naturally occurring sample of the element, measured in atomic mass units (amu). This average takes into account the relative abundances of the various isotopes of the element, which can significantly influence its overall atomic weight. For instance, carbon has two stable isotopes: carbon-12 and carbon-13. The chemical atomic weight of carbon is approximately 12.01 amu, reflecting the natural abundance of these isotopes in nature.Understanding chemical atomic weight is essential for various applications in chemistry, including stoichiometry, which is the calculation of reactants and products in chemical reactions. When chemists perform reactions, they often rely on the chemical atomic weight to determine how much of each substance is needed to achieve a desired outcome. For example, if one wants to synthesize water from hydrogen and oxygen, knowing the chemical atomic weight of each element allows for precise measurements to ensure that the reaction proceeds efficiently without excess reactants.Moreover, the chemical atomic weight is also crucial in the field of pharmacology, where it helps in the formulation of medications. Each drug is composed of various elements, and understanding their chemical atomic weight allows pharmacists to calculate dosages accurately. For instance, when creating a new medication, scientists must consider the chemical atomic weight to ensure that the active ingredients are present in the right proportions to be effective and safe for patients.In addition to practical applications, the chemical atomic weight is also significant in research and education. Students learning chemistry must grasp this concept as it forms the basis for many other topics, such as molar mass, molecular structure, and chemical bonding. By mastering the chemical atomic weight, students can better understand the behavior of elements and compounds, which is essential for progressing in the field.Furthermore, advancements in technology have allowed for more accurate measurements of chemical atomic weight. Mass spectrometry, for example, is a technique used to determine the mass-to-charge ratio of ions, providing precise data on the chemical atomic weight of various substances. This technology has revolutionized the way chemists approach problems and has led to discoveries that were previously unattainable.In conclusion, the chemical atomic weight is a vital concept in chemistry that influences various aspects of science and industry. From facilitating chemical reactions to ensuring accurate medication dosages, understanding chemical atomic weight is essential for anyone involved in the scientific community. As we continue to explore the intricacies of the universe, the importance of this concept will only grow, highlighting the need for continued education and research in the field of chemistry.

化学原子量的概念在化学领域中是基础性的，并在理解元素和化合物的性质方面发挥着至关重要的作用。元素的化学原子量被定义为自然发生的样本中原子的加权平均质量，以原子质量单位（amu）为单位测量。这个平均值考虑了元素各种同位素的相对丰度，这可能显著影响其整体原子量。例如，碳有两个稳定同位素：碳-12和碳-13。碳的化学原子量约为12.01 amu，反映了这些同位素在自然界中的自然丰度。理解化学原子量对于化学中的各种应用至关重要，包括化学计量学，即计算化学反应中的反应物和产品。当化学家进行反应时，他们通常依赖于化学原子量来确定实现所需结果所需的每种物质的数量。例如，如果想通过氢和氧合成水，了解每个元素的化学原子量可以确保精确测量，从而确保反应高效进行，而不需要过量的反应物。此外，化学原子量在药理学领域也至关重要，它有助于药物配方的制定。每种药物由各种元素组成，了解它们的化学原子量使药剂师能够准确计算剂量。例如，在制造新药物时，科学家必须考虑化学原子量，以确保活性成分以正确的比例存在，以便对患者有效且安全。除了实际应用外，化学原子量在研究和教育中也具有重要意义。学习化学的学生必须掌握这一概念，因为它构成了许多其他主题的基础，例如摩尔质量、分子结构和化学键。通过掌握化学原子量，学生可以更好地理解元素和化合物的行为，这对于在该领域的进步至关重要。此外，科技的进步使得对化学原子量的测量更加准确。例如，质谱法是一种用于确定离子的质量与电荷比的技术，提供了各种物质的化学原子量的精确数据。这项技术彻底改变了化学家处理问题的方式，并导致了以前无法获得的发现。总之，化学原子量是化学中的一个重要概念，影响着科学和工业的各个方面。从促进化学反应到确保药物剂量的准确性，理解化学原子量对任何参与科学界的人来说都是必不可少的。随着我们继续探索宇宙的复杂性，这一概念的重要性只会增加，突显了在化学领域继续教育和研究的必要性。