weight percent

简明释义

重量百分数

英英释义

例句

1.The solution contains 10% of salt by weight percent.

该溶液中盐的含量为10%重量百分比。

2.In this alloy, copper makes up 70% weight percent.

在这个合金中，铜的含量为70%重量百分比。

3.To achieve the desired strength, the concrete mix must have 20% cement weight percent.

为了达到所需的强度，混凝土配比中水泥的含量必须为20%重量百分比。

4.The recipe calls for 5% sugar weight percent of the total mixture.

这个食谱要求糖的含量为总混合物的5%重量百分比。

5.The paint has a pigment concentration of 15% weight percent.

这款油漆的颜料浓度为15%重量百分比。

作文

Understanding the concept of weight percent is crucial in various scientific fields, especially in chemistry and materials science. The term weight percent, often abbreviated as wt%, refers to the mass of a component divided by the total mass of the mixture, multiplied by 100. This measurement is essential for accurately describing the composition of solutions and mixtures. For instance, when preparing a saline solution, knowing the weight percent of salt in the solution helps in determining the concentration required for specific applications. In practical terms, if you have a solution containing 10 grams of salt dissolved in 90 grams of water, the total mass of the solution is 100 grams. To find the weight percent of salt, you would use the formula: (mass of solute / total mass) × 100. Therefore, the calculation would be (10 g / 100 g) × 100, which results in a weight percent of 10%. This simple yet effective calculation allows scientists and engineers to communicate and replicate experiments or formulations accurately.The importance of weight percent extends beyond chemistry. In food science, for example, nutrition labels often provide information in weight percent. When consumers read that a product contains 20% protein, they can easily understand the proportion of protein relative to the total weight of the food item. This kind of labeling is beneficial for dietary planning and ensuring adequate nutrient intake.Moreover, in environmental science, the weight percent of pollutants in air or water samples is often reported to assess contamination levels. Regulators use these values to determine compliance with safety standards. For instance, if a water sample shows a weight percent of lead exceeding acceptable limits, immediate action may be necessary to protect public health.In industrial applications, weight percent plays a vital role in quality control. Manufacturers need to ensure that their products meet specific weight percent specifications to maintain consistency and quality. For example, the production of alloys requires precise weight percent ratios of different metals to achieve desired properties such as strength and corrosion resistance. Deviations from these specified weight percent ratios can lead to failures in application and potentially hazardous situations.In conclusion, the concept of weight percent is not only fundamental in scientific research but also has practical implications in everyday life. Whether it is in formulating a chemical solution, reading nutritional labels, monitoring environmental pollutants, or ensuring product quality in manufacturing, understanding weight percent empowers individuals and professionals alike. Mastering this concept enables better decision-making and enhances communication across various disciplines. As we continue to encounter complex mixtures and solutions in our daily lives, a solid grasp of weight percent will undoubtedly prove beneficial.

理解weight percent的概念在各种科学领域中至关重要，尤其是在化学和材料科学中。术语weight percent，通常缩写为wt%，指的是某一成分的质量与混合物的总质量之比，再乘以100。这一测量对于准确描述溶液和混合物的组成至关重要。例如，在制备盐水溶液时，了解溶液中盐的weight percent有助于确定特定应用所需的浓度。从实际角度来看，如果你有一个包含10克盐溶解在90克水中的溶液，那么溶液的总质量为100克。要找出盐的weight percent，你可以使用公式：（溶质质量/总质量）×100。因此，计算将是（10克/100克）×100，结果为10%的weight percent。这一简单而有效的计算使科学家和工程师能够准确地交流和复制实验或配方。weight percent的重要性超越了化学。在食品科学中，例如，营养标签通常以weight percent提供信息。当消费者看到某产品含有20%的蛋白质时，他们可以轻松理解蛋白质相对于食品总重量的比例。这种标示对饮食规划和确保充足的营养摄入非常有益。此外，在环境科学中，空气或水样本中污染物的weight percent通常被报告，以评估污染水平。监管机构利用这些数值来确定是否符合安全标准。例如，如果水样显示铅的weight percent超过可接受的限值，则可能需要立即采取措施以保护公众健康。在工业应用中，weight percent在质量控制中发挥着至关重要的作用。制造商需要确保其产品满足特定的weight percent规格，以保持一致性和质量。例如，合金的生产需要不同金属的精确weight percent比例，以实现所需的强度和耐腐蚀性。如果这些指定的weight percent比例偏离，可能会导致应用失败和潜在的危险情况。总之，weight percent的概念不仅在科学研究中是基础，而且在日常生活中具有实际意义。无论是在配制化学溶液、阅读营养标签、监测环境污染物，还是确保制造中的产品质量，理解weight percent赋予个人和专业人士更大的能力。掌握这一概念可以促进更好的决策，并增强各个学科之间的沟通。随着我们在日常生活中继续遇到复杂的混合物和溶液，对weight percent的扎实掌握无疑将证明是有益的。