molality

简明释义

英[mɒˈlæləti]美[moˈlæləti]

n. 质量摩尔浓度 [分化] 重量摩尔浓度 [化学]（旧称重量克分子浓度）

英英释义

单词用法

同义词

反义词

例句

1.Times the molality of B.

乘以B的质量摩尔浓度。

2.Molality - the number of moles of solute divided by the number of kilograms of solvent.

质量摩尔浓度-痣的数目溶质除以公斤的溶剂。

3.I said we're going to use molality.

刚才说我们要用质量摩尔浓度。

4.Amount of temperature change depends linearly on the molality of B, with a constant that depends on what the mixture is.

温度的变化量，正比于b的摩尔数，比例常数和混合物是什么有关。

5.Now, the only I can do is, I'm trying to get at molality here.

现在，唯一能做的就是，尽量往质量摩尔浓度上靠。

6.Amount of temperature change depends linearly on the molality of B, with a constant that depends on what the mixture is.

温度的变化量，正比于b的摩尔数，比例常数和混合物是什么有关。

7.Calculating the molality 摩尔浓度 is essential for determining the freezing point depression of a solution.

计算molality 摩尔浓度 对于确定溶液的冰点降低是必不可少的。

8.The molality 摩尔浓度 of the acid in the solution was found to be higher than expected, affecting the reaction rate.

溶液中酸的molality 摩尔浓度 被发现高于预期，影响了反应速率。

9.The molality 摩尔浓度 of the solution is calculated by dividing the number of moles of solute by the mass of solvent in kilograms.

溶液的molality 摩尔浓度 是通过将溶质的摩尔数除以溶剂的千克质量来计算的。

10.To find the molality 摩尔浓度 of a saltwater solution, you must know both the amount of salt and the weight of the water used.

要找到盐水溶液的molality 摩尔浓度，你必须知道盐的量和所用水的重量。

11.In a laboratory experiment, we need to prepare a solution with a specific molality 摩尔浓度 to ensure accurate results.

在实验室实验中，我们需要准备具有特定molality 摩尔浓度 的溶液以确保结果的准确性。

作文

In the field of chemistry, understanding the concentration of solutions is crucial for various applications, including laboratory experiments and industrial processes. One important way to express the concentration of a solution is through a term known as molality. Molality (摩尔浓度) is defined as the number of moles of solute per kilogram of solvent. This measurement is particularly useful because it does not change with temperature, unlike molarity, which depends on the volume of the solution that can vary with temperature changes. To illustrate the concept of molality, consider a simple example: if we dissolve 1 mole of sodium chloride (NaCl) in 1 kilogram of water, the molality of the solution would be 1 mol/kg. This means that for every kilogram of water, there is one mole of sodium chloride dissolved. This straightforward relationship allows chemists to predict how different concentrations will affect chemical reactions, boiling points, and freezing points.The significance of molality extends beyond just academic interest; it plays a vital role in real-world applications. For instance, in the food industry, understanding the molality of salt solutions can help in determining the correct salinity levels for preserving food. Similarly, in pharmaceuticals, knowing the molality of drug solutions is essential for ensuring accurate dosages and effective treatments.Furthermore, the calculation of molality is relatively straightforward, making it accessible for students and professionals alike. To calculate molality, one simply needs to know the mass of the solute in moles and the mass of the solvent in kilograms. The formula can be expressed as:Molality (m) = moles of solute / kilograms of solvent.This formula highlights the importance of precise measurements in experiments and formulations. For example, if a chemist wants to create a solution with a specific molality, they must accurately weigh both the solute and solvent to achieve the desired concentration. Any errors in measurement could lead to incorrect concentrations, affecting the outcome of experiments or product quality.In conclusion, molality is a fundamental concept in chemistry that provides valuable insight into the concentration of solutions. Its definition as the number of moles of solute per kilogram of solvent offers a reliable way to understand how substances interact in various environments. Whether in the laboratory, industry, or everyday life, mastering the concept of molality is essential for anyone working with chemical solutions. By grasping this concept, individuals can enhance their scientific literacy and contribute to advancements in various fields that rely on precise chemical measurements and concentrations.

在化学领域，理解溶液的浓度对于各种应用至关重要，包括实验室实验和工业过程。一个重要的表达溶液浓度的方法是一个称为molality（摩尔浓度）的术语。Molality定义为每千克溶剂中的溶质摩尔数。这个测量特别有用，因为它不随温度变化而变化，而与溶液体积相关的摩尔浓度则会因温度变化而变化。为了说明molality的概念，考虑一个简单的例子：如果我们将1摩尔氯化钠（NaCl）溶解在1千克水中，那么该溶液的molality将为1 mol/kg。这意味着每千克水中溶解了1摩尔氯化钠。这种简单的关系使化学家能够预测不同浓度如何影响化学反应、沸点和冰点。Molality的重要性不仅限于学术兴趣；它在现实世界的应用中发挥着重要作用。例如，在食品工业中，了解盐溶液的molality可以帮助确定保存食品所需的适当盐度。同样，在制药行业，了解药物溶液的molality对于确保准确剂量和有效治疗至关重要。此外，molality的计算相对简单，使学生和专业人士都能掌握。要计算molality，只需知道以摩尔计的溶质质量和以千克计的溶剂质量。公式可以表示为：Molality (m) = 溶质摩尔数 / 溶剂千克数。这个公式突显了实验和配方中精确测量的重要性。例如，如果化学家想要创建具有特定molality的溶液，他们必须精确称量溶质和溶剂，以达到所需浓度。任何测量错误都可能导致浓度不正确，从而影响实验结果或产品质量。总之，molality是化学中的一个基本概念，提供了对溶液浓度的宝贵洞察。它作为每千克溶剂中溶质摩尔数的定义，为理解物质在各种环境中的相互作用提供了一种可靠的方法。无论是在实验室、工业还是日常生活中，掌握molality的概念对于任何处理化学溶液的人都是必不可少的。通过掌握这一概念，个人可以提高科学素养，并为依赖精确化学测量和浓度的各个领域的进步做出贡献。