英文:The chemistry teacher explained the concept of a mole in class. 英文同义表达: 对于“鼹鼠”的意思,同义词可以包括“burrowing mammal”或“small underground mammal”。 对于化学中的“摩尔”,同义词可以是“mol”(摩尔的缩写形式),没有其他常见的非专业同义词,因为这个术语在化...
Originally, a mole was the quantity of anything that has the same number of particles found in 12.000 grams of carbon-12. That number of particles is Avogadro's number, which is roughly 6.02x1023. A mole of carbon atoms is 6.02x1023carbon atoms. A mole of chemistry teachers is 6.02x1023...
In this paper, the rationale for the new definition is explained against the background of changes in the way the quantity amount of substance has been used, from its first use during the early development of thermodynamics through to the use of the 'number of gram-molecules' at the end ...
This paper is an introduction to the principles developed for the application of metrology to the field of chemistry and particularly to analytical chemistry. It starts with a discussion of the mole, the base unit of the SI that is most relevant to analytical chemistry. The mole has become the...
the 10th grade students chose one that they were interested in and completed the experiment and the experiment report independently under the guidance of the teacher and 11th grade students. This activity not only greatly consolidated the students'...
A content analysis of the presentation of the mole concept in chemistry textbooks The goal of this study was to examine the means used by textbook authors to introduce, define, and explain the mole concept in high school and introductory... JR Staver,AT Lumpe - 《Journal of Research in ...
mole,物质的量的单位,文献
celebrate it, expand students’thinking, develop their interests in Chemistry. Students in six groups designed six experiments, explained and displayed them spontaneously,which not only helps consolidate the basic knowledge of chemistry, but also cultivate ...
The impracticalities were explained to her from all angles, but she was insistent. A compromise was reached. When she was old enough she would spend spring, summer and autumn teaching callisthenics and chemistry at a school for the daughters of impecunious gentlemoles, and in the winter a...
explained questions like what is an atom and what is a mole, and the relationship between them -- moles are the bridge between the micro-world and the macro world. We picked the experiments that involved both physical and chemical changes, which are also important in chemistry.I drew a ...