molarity

简明释义

英[məˈlærɪti]美[məˈlærɪti]

n. [化学] 摩尔浓度；容模

英英释义

单词用法

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例句

1.Some right expressions relating to solution composition, such as mass fraction, volume fraction, mass concentration, molarity and volume ratio were intro...

对溶液组成标度，如质量分数、体积分数、质量浓度、物质的量的浓度、体积比的正确表述也一一进行了介绍。

2.Some right expressions relating to solution composition, such as mass fraction, volume fraction, mass concentration, molarity and volume ratio were intro...

对溶液组成标度，如质量分数、体积分数、质量浓度、物质的量的浓度、体积比的正确表述也一一进行了介绍。

3.Some right expressions relating to solution composition, such as mass fraction, volume fraction, mass concentration, molarity and volume ratio were intro.

对溶液组成标度，如质量分数、体积分数、质量浓度、物质的量的浓度、体积比的正确表述也一一进行了介绍。

4.Your goal is to report the molarity of the hydrochloric acid and the molarity of the phosphoric acid in the mixture, with their uncertainties.

你的目标是要回报在混合物中氢氯酸的莫耳浓度和磷酸的莫耳浓度以及它们的不确定度。

5.These two solutions still contain exactly the same number of molecules because they are of the same molarity.

这两种溶液仍然含有相同数量的分子，因为它们的克分子浓度相同。

6.The molarity of the solution is calculated by dividing the number of moles of solute by the volume of the solution in liters.

溶液的摩尔浓度是通过将溶质的摩尔数除以溶液的体积（以升为单位）来计算的。

7.To prepare a 1 M solution, you need to know the molarity and the amount of solute required.

要制备1M的溶液，您需要知道摩尔浓度和所需的溶质量。

8.In a titration experiment, the molarity'>摩尔浓度以获得准确的结果。

9.The molarity of hydrochloric acid can vary depending on its concentration.

盐酸的摩尔浓度可能会根据其浓度而有所不同。

10.You can determine the molarity of a solution using a spectrophotometer.

您可以使用分光光度计来确定溶液的摩尔浓度。

作文

In the field of chemistry, understanding the concept of molarity is crucial for conducting experiments and preparing solutions. molarity is defined as the number of moles of solute per liter of solution. This measurement allows chemists to quantify the concentration of a substance in a solution, which is essential for various applications, from laboratory research to industrial processes. To better understand molarity, let us consider an example involving saltwater. When table salt (sodium chloride) is dissolved in water, it dissociates into sodium and chloride ions. If we were to create a solution with a specific concentration of salt, we would need to calculate its molarity. For instance, if we dissolve 1 mole of salt in enough water to make a total volume of 1 liter, the resulting molarity of the solution would be 1 M (molar). This means that there is 1 mole of solute (salt) in every liter of solution. The formula for calculating molarity is straightforward: molarity (M) = moles of solute / liters of solution. This equation highlights the direct relationship between the amount of solute and the volume of the solution. It also emphasizes the importance of precise measurements in both the preparation of solutions and the execution of chemical reactions. If a chemist needs a solution with a specific molarity, they must carefully measure both the solute and the solvent to achieve the desired concentration. Understanding molarity is not only important in academic settings but also has real-world implications. For example, in pharmaceuticals, the molarity of a drug solution can determine its effectiveness and safety. A medication with too high a molarity might lead to toxicity, while too low a concentration may render it ineffective. Therefore, pharmacists must accurately calculate the molarity of solutions when compounding medications to ensure patient safety and therapeutic efficacy. Moreover, molarity plays a significant role in environmental science. When assessing water quality, scientists often measure the molarity of pollutants in bodies of water. High molarity levels of certain contaminants can indicate pollution and pose risks to aquatic life and human health. Thus, monitoring molarity helps in formulating strategies to mitigate environmental damage and protect ecosystems. In conclusion, the concept of molarity is fundamental in chemistry and has broad applications across various fields. Whether in a laboratory, pharmacy, or environmental study, understanding and accurately calculating molarity enables professionals to make informed decisions and ensure the safety and effectiveness of their work. As we continue to explore the intricacies of chemical solutions, mastering the concept of molarity will undoubtedly enhance our understanding of the world around us.

在化学领域，理解摩尔浓度的概念对于进行实验和制备溶液至关重要。摩尔浓度被定义为每升溶液中溶质的摩尔数。这一测量使化学家能够量化溶液中物质的浓度，这对于从实验室研究到工业过程的各种应用都是必不可少的。 为了更好地理解摩尔浓度，我们考虑一个关于盐水的例子。当食盐（氯化钠）溶解在水中时，它会解离成钠离子和氯离子。如果我们要制备一种特定浓度的盐溶液，我们需要计算其摩尔浓度。例如，如果我们将1摩尔的盐溶解在足够的水中，使总容量达到1升，那么所得溶液的摩尔浓度将为1 M（摩尔）。这意味着每升溶液中有1摩尔的溶质（盐）。 计算摩尔浓度的公式很简单： 摩尔浓度（M）= 溶质的摩尔数 / 溶液的升数。 这个方程突出了溶质的数量与溶液体积之间的直接关系。它还强调了在制备溶液和执行化学反应时精确测量的重要性。如果化学家需要一种特定摩尔浓度的溶液，他们必须仔细测量溶质和溶剂，以实现所需的浓度。 理解摩尔浓度不仅在学术环境中重要，而且具有现实世界的影响。例如，在制药行业，药物溶液的摩尔浓度可以决定其有效性和安全性。浓度过高的药物可能导致毒性，而浓度过低则可能使其无效。因此，药剂师在配制药物时必须准确计算溶液的摩尔浓度，以确保患者的安全和治疗效果。 此外，摩尔浓度在环境科学中也发挥着重要作用。在评估水质时，科学家通常测量水体中污染物的摩尔浓度。某些污染物的高摩尔浓度水平可能表明污染，并对水生生物和人类健康构成风险。因此，监测摩尔浓度有助于制定减轻环境损害和保护生态系统的策略。 总之，摩尔浓度的概念在化学中是基础性的，并且在各个领域都有广泛的应用。无论是在实验室、药房还是环境研究中，理解和准确计算摩尔浓度使专业人士能够做出明智的决策，确保他们工作的安全性和有效性。随着我们继续探索化学溶液的复杂性，掌握摩尔浓度的概念无疑将增强我们对周围世界的理解。