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所在平台: Udemy |
课程主页: https://www.udemy.com/course/chemistr-calculating-percentage-solutions/
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**课程名称：** 化学 - 计算百分比溶液 **课程概述：** 本课程专为在百分比溶液计算方面遇到困难的学习者设计。您是否对重量/体积 (w/v)、体积/体积 (v/v) 和重量/重量 (w/w) 等不同类型的百分比溶液感到困惑？本课程将系统地讲解这些概念，并教授您如何准确计算所需的溶质量，以及如何在实验室中配制不同类型的百分比溶液。 **课程内容亮点：** * **深入理解百分比溶液：** 详细介绍重量/体积 (w/v)、体积/体积 (v/v) 和重量/重量 (w/w) 三种常见的百分比溶液类型。 * **实用的计算技巧：** 学习如何根据实验需求，准确计算配制特定浓度百分比溶液所需的溶质（克或毫升）数量。 * **实验室操作演示：** 通过实际操作演示，直观展示如何在实验室中配制不同类型的百分比溶液，理论与实践相结合。 * **解决实际问题：** 课程涵盖“如何配制10毫升5% (w/v) 的NaCl溶液？”或“将5克甘油与60克水混合，该溶液的重量百分比是多少？”等典型问题，帮助您掌握实际应用能力。 * **评估与巩固：** 配备三个测验，分别针对三种百分比溶液类型，帮助您检验学习成果，巩固知识。 **学习目标：** 完成本课程后，您将能够： * 计算配制百分比重量/体积 (w/v) 溶液所需的化合物克数。 * 计算溶液的重量/体积 (w/v) 百分比。 * 计算配制百分比重量/重量 (w/w) 溶液所需的化合物克数。 * 计算溶液的重量/重量 (w/w) 百分比。 * 计算配制百分比体积/体积 (v/v) 溶液所需的溶液毫升数。 * 计算溶液的体积/体积 (v/v) 百分比。 * 熟悉在实验室中配制这些溶液的方法。 **额外资源：** 课程还提供一本电子书（epub/pdf格式），其中包含关于百分比溶液的关键信息和更多的例题，进一步辅助您的学习。
Having trouble with percentage solutions?Don't know your w/v from your w/w?If you are struggling with percentage solutions, then this course is for you!In this course, you learn about the different types of percentage solutions you may find or be asked to make in a lab. The course will cover percentage weight by volume (w/v), percentage volume by volume (v/v) and percentage weight by weight (w/w) solutions, and how to calculate the amount of a substance you need. You will also get see how the different types of percentage solutions are made up in the lab.This course is for you if you struggle with questions such as "How many grams of NaCl do you need to make 10 ml of a 5% (w/v) solution?" or "What is the percentage weight by weight of a solution consisting of 5 g of glycerol mixed with 60 g of water?"The course comes with three quizzes to test your understanding of the three different types of percentage solutions, and by the end of the course you will be able to: Calculate the number of grams of a compound needed to make up a percentage weight by volume (w/v) solutionCalculate the weight by volume (w/v) percentage for a solutionCalculate the number of grams of a compound needed to make up a percentage weight by weight (w/w) solutionCalculate the weight by weight (w/w) percentage for a solutionCalculate the number of millilitres of a solution you will need to make up percentage volume by volume (v/v) solutionCalculate the volume by volume (v/v) percentage for a solutionAnd you will have seen how to make the solutions up in the lab.The course also comes with an eBook (epub/pdf) that outlines key information about percentage solutions and includes additional worked examples.
