mol

简明释义

[məʊl][moʊl]

n. [化学]摩尔;[化学]克分子(等于 mole)

n. (Mol)人名;(柬)蒙;(朝)没;(英、法、捷)莫尔

英英释义

A unit of measurement in chemistry that represents the amount of substance containing as many elementary entities (atoms, molecules, ions, etc.) as there are atoms in 12 grams of carbon-12.

化学中一种测量单位,表示所含物质的量,其包含的基本实体(原子、分子、离子等)数量与12克碳-12中的原子数量相等。

单词用法

mole fraction

摩尔分数

molar mass

摩尔质量

mole concept

摩尔概念

1 mol of gas

1摩尔气体

moles per liter (mol/l)

每升摩尔数(mol/L)

convert to moles

转换为摩尔

同义词

mole

摩尔

The mole is a unit used in chemistry to express amounts of a chemical substance.

摩尔是化学中用于表示化学物质数量的单位。

反义词

mass

质量

The mass of the substance is measured in grams.

物质的质量以克为单位测量。

atom

原子

An atom is the smallest unit of an element.

原子是元素的最小单位。

例句

1.The effects of the operating conditions such as reaction temperature, liquid space velocity and the mol ratio of hydrogen to diolefins were investigated.

考察了反应温度、空速及氢气与双烯烃的摩尔比等工艺条件对加氢效果的影响。

2.The diluting gas is hydrogen, argon or nitrogen. The mol ratio of carbon source to diluting gas is 0.5-5.

稀释气体为氢气、氩气、氮气,碳源与稀释气体的摩尔比在0.5~5范围内;

3.Deactive resin is regenerated with 3.5% (mol) sulfuric acid solution.

失活树脂用摩尔分数为3.5%的硫酸溶液再生。

4.We calculate the spatial distributions of magnetic fields and their gradients and curvatures, and the results prove the possibility of realizing MOL and ML.

接着详细计算了两种方案中磁阱的磁场强度及其梯度与曲率的空间分布,理论证明了实现磁光晶格和磁晶格的可行性。

5.When the copolyester contains 10%, 15%, or 50% (mol) isophthalic acid, it displays the optical property of the thermotropic mesomorphic phase;

当间苯二甲酸的含量为10%、15%和50%(摩尔)时,共聚酯显示出热致性中介相的光学性质。

6.Meanwhile, the effects of some factors such as pH, nephelomete, mol-ratio on the enthalpy are studied using Uniform Design method.

用均匀设计法分析了各个因素对焓变的影响及本身可能存在的交互作用。

7.In fact, the amount of lysine adsorbed at the highest added salt concentration (0.1 m) was only 4 mol % of that adsorbed with no added salt.

事实上,这一数额赖氨酸吸附在最高盐浓度增加(0.1米)的摩尔只有4 %的吸附没有增加盐。

8.MOL in South Africa have confirmed they do not offer a service into Mombasa.

南非MOL确认说他们没有去蒙巴萨岛的服务。

9.In the a mol saraf workshop, teacher from India taught children to draw picture with colorful sand.

在印度沙画工作坊,来自印度的艺术家会教小朋友们用彩色的沙子做画。

10.A mol of water has a mass of approximately 18 grams.

摩尔水的质量约为18克。

11.In chemistry class, we learned that one mol of any substance contains Avogadro's number of particles.

在化学课上,我们了解到一摩尔的任何物质包含阿伏伽德罗数的粒子。

12.During the experiment, we measured 2 mol of sodium chloride.

在实验中,我们测量了2摩尔的氯化钠。

13.The ideal gas law states that PV = nRT, where n is the number of mol of gas.

理想气体定律表明PV = nRT,其中n是气体的摩尔数。

14.To convert grams to mol, you need to divide the mass by the molar mass.

要将克转换为摩尔,需要将质量除以摩尔质量。

作文

The term mol refers to a fundamental unit in chemistry that is used to measure the amount of substance. It is defined as the amount of substance that contains as many elementary entities, such as atoms, molecules, or ions, as there are in 12 grams of carbon-12. This means that one mol of any substance contains approximately 6.022 x 10²³ entities, a number known as Avogadro's number. Understanding the concept of mol is crucial for students and professionals in the field of chemistry, as it serves as a bridge between the atomic scale and the macroscopic scale we observe in everyday life.In practical terms, when chemists perform calculations involving reactions, they often need to convert between grams of a substance and mols. For instance, if a chemist has 18 grams of water (H₂O), they can calculate the number of mols of water present by using the molar mass of water, which is approximately 18 g/mol. Thus, 18 grams of water corresponds to exactly 1 mol of water. This relationship allows chemists to predict how substances will react with each other based on their molar quantities.Moreover, the concept of mol is not limited to just pure substances; it also extends to solutions. When dealing with solutions, concentration is often expressed in terms of molarity, which is the number of mols of solute per liter of solution. For example, a 1 M (1 molar) solution of sodium chloride (NaCl) contains 1 mol of NaCl in every liter of solution. This makes it easier to understand how much of a substance is present in a given volume, which is essential for tasks such as titration in analytical chemistry.The importance of mol extends beyond chemistry; it is also significant in fields like biology and environmental science. For instance, biochemists often use mol to quantify the concentrations of enzymes and substrates in biochemical reactions. Similarly, environmental scientists may measure pollutants in terms of mol per liter to assess water quality and contamination levels.In conclusion, the concept of mol is a cornerstone of chemical education and practice. It provides a clear and standardized way to quantify substances, facilitating communication and calculations in scientific research. Whether in the laboratory or in theoretical studies, understanding mol is essential for anyone involved in the sciences. As students delve deeper into chemistry, mastering the use of mol will undoubtedly enhance their comprehension of chemical principles and their application in real-world scenarios.

mol”这个词指的是化学中的一个基本单位,用于测量物质的数量。它被定义为含有与12克碳-12中所含的基本实体(如原子、分子或离子)数量相同的物质的量。这意味着,任何物质的1个mol大约包含6.022 x 10²³个实体,这个数字被称为阿伏伽德罗常数。理解mol的概念对于化学领域的学生和专业人士至关重要,因为它在原子尺度和我们在日常生活中观察到的宏观尺度之间架起了桥梁。在实际操作中,当化学家进行涉及反应的计算时,他们通常需要在物质的克数和mol之间进行转换。例如,如果化学家有18克水(H₂O),他们可以通过使用水的摩尔质量(约18 g/mol)来计算存在的水的mol数。因此,18克水对应于正好1个mol的水。这种关系使得化学家能够根据物质的mol数量预测它们之间的反应。此外,mol的概念不仅限于纯物质;它也扩展到溶液。当处理溶液时,浓度通常以molarity表示,即每升溶液中溶质的mol数。例如,1 M(1摩尔)氯化钠(NaCl)溶液在每升溶液中含有1个mol的NaCl。这使得理解给定体积中存在多少物质变得更加简单,这对于滴定等分析化学任务至关重要。mol的重要性超越了化学;它在生物学和环境科学等领域也具有重要意义。例如,生物化学家经常使用mol来量化生化反应中酶和底物的浓度。同样,环境科学家可能会以每升mol为单位测量污染物,以评估水质和污染水平。总之,mol的概念是化学教育和实践的基石。它提供了一种清晰且标准化的方式来量化物质,促进科学研究中的交流和计算。无论是在实验室还是在理论研究中,理解mol对任何参与科学的人来说都是必不可少的。随着学生深入学习化学,掌握mol的使用无疑将增强他们对化学原理及其在现实世界中的应用的理解。