Buffers in Context: Baby Wipes As a Buffer System
Buffers in Context: Baby Wipes As a Buffer System
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背景中的缓冲器：婴儿湿巾作为缓冲系统
作者：
Jon;Sarah Hensiek;J. Meyer;C. J. Harwood;M. Towns
了解缓冲液在各种化学分支学科中非常重要，并在生命科学和健康专业相关领域具有相关应用。在这里，我们描述了一个实验室的开发和实施，其中涉及使用婴儿湿巾和去离子水创建缓冲溶液。该实验室的目标是强调对非专业普通化学课程的学生（主要由健康/人类科学和农业科学专业组成）感兴趣且相关的背景下的缓冲区的概念性理解。实验前作业和实验后讨论的重点是通过在实验室观察和缓冲区的颗粒级视图之间建立联系来进行建模。总体而言，该实验旨在促使学生超越缓冲液抵抗 pH 变化的宏观观点，引导学生机械地思考缓冲液如何抵抗 pH 变化，这一过程在很大程度上取决于缓冲液的成分。
An understanding of buffers is important in a variety of chemistry subdisciplines, with relevant applications to the life sciences and health profession-related fields. Here, we describe the development and implementation of a lab that involves creating a buffer solution using baby wipes and deionized water. The goal of this lab was to emphasize a conceptual understanding of buffers within a context that would be interesting and relevant for students in a nonmajors general chemistry course, a population composed primarily of health/human science and agricultural science majors. The prelaboratory assignment and postlaboratory discussion focus on modeling by making connections between laboratory observations and the particulate-level view of a buffer. Overall, the experiment seeks to prompt students to think beyond the macroscopic view that buffers resist changes in pH and guide students toward thinking mechanistically about how a buffer resists changes in pH, a process that depends largely on the buffer co...
影响因子：
3
作者：
Underwood, Sonia M.;Posey, Lynmarie A.;Herrington, Deborah G.;Carmel, Justin H.;Cooper, Melanie M.
通讯作者：
Cooper, Melanie M.