Avogadro's Number

简明释义

阿伏伽德罗数;

英英释义

例句

1.When calculating the number of molecules in a gas, you can use Avogadro's Number (阿伏伽德罗常数) as part of your formula.

在计算气体中的分子数时，可以将阿伏伽德罗常数 (Avogadro's Number) 作为公式的一部分。

2.In chemistry, we often use Avogadro's Number (阿伏伽德罗常数) to convert moles of a substance to the number of molecules.

在化学中，我们经常使用阿伏伽德罗常数 (Avogadro's Number) 将物质的摩尔数转换为分子数。

3.The value of Avogadro's Number (阿伏伽德罗常数) is approximately 6.022 x 10²³.

阿伏伽德罗常数 (Avogadro's Number) 的值大约是 6.022 x 10²³。

4.To find out how many atoms are in a mole of gold, we multiply by Avogadro's Number (阿伏伽德罗常数).

要找出一摩尔黄金中有多少个原子，我们需要乘以阿伏伽德罗常数 (Avogadro's Number)。

5.In a laboratory experiment, we measured 2 moles of sodium chloride, which equals 2 times Avogadro's Number (阿伏伽德罗常数) of formula units.

在实验室实验中，我们测量了 2 摩尔氯化钠，这等于 2 倍的阿伏伽德罗常数 (Avogadro's Number) 的化学式单位。

作文

Avogadro's Number, which is approximately 6.022 x 10^23, is a fundamental constant in chemistry that represents the number of atoms, molecules, or particles in one mole of a substance. This concept is named after the Italian scientist Amedeo Avogadro, who played a crucial role in establishing the principle that equal volumes of gases, at the same temperature and pressure, contain an equal number of molecules. Understanding Avogadro's Number (阿伏伽德罗常数) is essential for students and professionals in the field of chemistry as it provides a bridge between the atomic scale and the macroscopic world we observe daily.In practical terms, Avogadro's Number (阿伏伽德罗常数) allows chemists to convert between the mass of a substance and the number of particles it contains. For instance, if you have one mole of carbon atoms, you can use Avogadro's Number (阿伏伽德罗常数) to determine that this amount contains roughly 6.022 x 10^23 carbon atoms. This is crucial when performing calculations involving chemical reactions, where knowing the exact number of reactants and products is necessary for predicting outcomes.Moreover, Avogadro's Number (阿伏伽德罗常数) is not limited to just atoms; it also applies to ions, molecules, and even formula units of ionic compounds. For example, in the case of water (H2O), one mole of water contains Avogadro's Number (阿伏伽德罗常数) of water molecules. If we know the molar mass of water is about 18 grams per mole, we can conclude that 18 grams of water holds approximately 6.022 x 10^23 molecules of H2O. This relationship exemplifies the power of Avogadro's Number (阿伏伽德罗常数) in linking the microscopic world of atoms and molecules to the macroscopic measurements we can handle.The significance of Avogadro's Number (阿伏伽德罗常数) extends beyond theoretical calculations; it has practical applications in various fields such as pharmacology, materials science, and environmental science. For instance, in pharmacology, understanding the concentration of drugs in solutions often requires the use of Avogadro's Number (阿伏伽德罗常数) to ensure accurate dosages. Similarly, in materials science, knowing the number of atoms in a given mass of a material can influence the design and application of new materials.In conclusion, Avogadro's Number (阿伏伽德罗常数) serves as a cornerstone in the study of chemistry. It provides a vital link between the atomic scale and our tangible experiences with matter. By mastering the concept of Avogadro's Number (阿伏伽德罗常数), students and professionals can navigate the complexities of chemical equations and reactions with greater confidence. As we continue to explore the intricacies of the universe at the molecular level, Avogadro's Number (阿伏伽德罗常数) will undoubtedly remain an indispensable tool in the chemist's toolkit.

阿伏伽德罗常数，即约为6.022 x 10^23，是化学中的一个基本常数，表示一摩尔物质中原子、分子或粒子的数量。这个概念以意大利科学家阿梅迪奥·阿伏伽德罗的名字命名，他在建立等体积气体在相同温度和压力下含有相同数量分子的原则方面发挥了重要作用。理解阿伏伽德罗常数（Avogadro's Number）对化学领域的学生和专业人士至关重要，因为它提供了原子尺度与我们日常观察到的宏观世界之间的桥梁。在实际应用中，阿伏伽德罗常数（Avogadro's Number）使化学家能够在物质的质量和其所含粒子数量之间进行转换。例如，如果你有一摩尔碳原子，你可以利用阿伏伽德罗常数（Avogadro's Number）确定这一数量大约包含6.022 x 10^23个碳原子。这在进行涉及化学反应的计算时至关重要，因为了解反应物和产物的确切数量对于预测结果是必要的。此外，阿伏伽德罗常数（Avogadro's Number）不仅限于原子，它还适用于离子、分子甚至离子化合物的化学式单位。例如，在水（H2O）的情况下，一摩尔水包含阿伏伽德罗常数（Avogadro's Number）的水分子。如果我们知道水的摩尔质量约为18克每摩尔，我们可以得出结论，18克水大约含有6.022 x 10^23个H2O分子。这个关系例证了阿伏伽德罗常数（Avogadro's Number）在将原子和分子的微观世界与我们可以处理的宏观测量联系起来的强大能力。阿伏伽德罗常数（Avogadro's Number）的重要性超越了理论计算；它在药理学、材料科学和环境科学等多个领域具有实际应用。例如，在药理学中，理解药物溶液中的浓度通常需要使用阿伏伽德罗常数（Avogadro's Number）以确保准确的剂量。同样，在材料科学中，了解给定质量材料中的原子数量可以影响新材料的设计和应用。总之，阿伏伽德罗常数（Avogadro's Number）是化学研究中的基石。它为原子尺度和我们对物质的可触知体验之间提供了重要的联系。通过掌握阿伏伽德罗常数（Avogadro's Number）的概念，学生和专业人士可以更自信地应对化学方程和反应的复杂性。当我们继续探索分子层面上宇宙的复杂性时，阿伏伽德罗常数（Avogadro's Number）无疑将继续成为化学家工具箱中不可或缺的工具。