aqueous solution

简明释义

水溶液

英英释义

例句

1.In the lab, we often use aqueous solutions to dissolve various salts.

在实验室中，我们常用水溶液来溶解各种盐类。

2.An aqueous solution of sodium chloride is commonly used in biology.

氯化钠的水溶液在生物学中常被使用。

3.The pH of an aqueous solution can be measured using a pH meter.

可以使用pH计测量水溶液的pH值。

4.You should always wear gloves when handling strong aqueous solutions.

处理强水溶液时应始终佩戴手套。

5.The chemist prepared an aqueous solution for the experiment.

化学家为实验准备了一种水溶液。

作文

In the realm of chemistry, understanding the properties and behaviors of different substances is crucial for various applications. One of the fundamental concepts that students and professionals alike must grasp is the idea of an aqueous solution. An aqueous solution is defined as a solution in which water is the solvent. This means that when a substance dissolves in water, it forms an aqueous solution that can exhibit unique characteristics depending on the solute involved.When we think about aqueous solutions, it is essential to consider the role of water as a solvent. Water is known as the 'universal solvent' because it can dissolve more substances than any other liquid. This property is due to its polar nature, which allows it to interact with various ions and molecules. For example, when table salt (sodium chloride) is added to water, it dissociates into sodium and chloride ions, creating an aqueous solution of saltwater. This process is vital in many biological and chemical processes, including cellular functions and reactions.The concentration of a solute in an aqueous solution can significantly affect the properties of that solution. Concentration is typically expressed in molarity, which is the number of moles of solute per liter of solution. A higher concentration of solute in an aqueous solution often leads to increased conductivity, as there are more charged particles available to carry electric current. This principle is utilized in various applications, from electrochemistry to environmental monitoring, where the conductivity of water can indicate the presence of pollutants or other dissolved substances.Moreover, the pH level of an aqueous solution is another critical factor to consider. The pH scale measures how acidic or basic a solution is, with a scale ranging from 0 to 14. Pure water has a neutral pH of 7, while solutions with a pH less than 7 are considered acidic, and those with a pH greater than 7 are basic. The pH of an aqueous solution can influence chemical reactions, biological processes, and even the solubility of certain substances. For instance, in agriculture, the pH of soil solutions affects nutrient availability for plants, highlighting the importance of managing aqueous solutions in farming practices.In addition to their chemical properties, aqueous solutions play a significant role in everyday life. Many household products, such as cleaning agents and beverages, are essentially aqueous solutions. Understanding how these solutions work can help consumers make informed choices about the products they use. For example, knowing that vinegar is an aqueous solution of acetic acid can explain its effectiveness as a natural cleaner due to its acidic properties.In conclusion, the concept of an aqueous solution is fundamental in both chemistry and daily life. By recognizing the significance of water as a solvent, the effects of solute concentration, and the importance of pH, we can better understand the behavior of aqueous solutions in various contexts. Whether in a laboratory setting or at home, the knowledge of aqueous solutions can enhance our comprehension of the world around us and improve our ability to engage with scientific concepts effectively.

在化学领域，理解不同物质的性质和行为对于各种应用至关重要。其中一个基本概念是学生和专业人士必须掌握的“水溶液”的概念。水溶液被定义为以水为溶剂的溶液。这意味着当一种物质溶解在水中时，它形成了一个水溶液，根据所涉及的溶质，这种溶液可能会表现出独特的特性。当我们思考水溶液时，考虑水作为溶剂的作用是至关重要的。水被称为“通用溶剂”，因为它可以溶解比任何其他液体更多的物质。这一特性归因于其极性，使其能够与各种离子和分子相互作用。例如，当食盐（氯化钠）加入水中时，它会解离成钠离子和氯离子，从而形成一个盐水的水溶液。这一过程在许多生物和化学过程中都是至关重要的，包括细胞功能和反应。溶质在水溶液中的浓度可以显著影响该溶液的性质。浓度通常以摩尔浓度表示，即每升溶液中的溶质摩尔数。较高的溶质浓度通常会导致导电性增加，因为可用于携带电流的带电粒子更多。这一原理在各种应用中得到了利用，从电化学到环境监测，在这些应用中，水的导电性可以指示污染物或其他溶解物质的存在。此外，水溶液的pH值也是一个重要的因素。pH值测量溶液的酸碱性，范围从0到14。纯水的pH值为7，pH值小于7的溶液被认为是酸性的，而pH值大于7的则是碱性的。水溶液的pH值可以影响化学反应、生物过程，甚至某些物质的溶解度。例如，在农业中，土壤溶液的pH值影响植物的养分可用性，突显了在农业实践中管理水溶液的重要性。除了化学性质外，水溶液在日常生活中也发挥着重要作用。许多家用产品，如清洁剂和饮料，本质上都是水溶液。了解这些溶液的工作原理可以帮助消费者对他们使用的产品做出明智的选择。例如，知道醋是醋酸的水溶液可以解释它作为天然清洁剂的有效性，因为它的酸性特性。总之，水溶液的概念在化学和日常生活中都是基础的。通过认识水作为溶剂的重要性、溶质浓度的影响以及pH值的重要性，我们可以更好地理解水溶液在各种背景下的行为。无论是在实验室环境还是在家中，关于水溶液的知识都可以增强我们对周围世界的理解，并提高我们有效参与科学概念的能力。