Search results for “Calculer Quantité de substance”

Substance Abuse and Its Consequences

Learn about what substance abuse is, and the consequences that result from it. Sources: https://www.drugabuse.gov/related-topics/trends-statistics https://www.summitbehavioralhealth.com/resources/articles/consequences-of-addiction/ This video was created by one of our volunteer authors to support

09 The amount of substance

In this screencast, the amount of substance is introduced as a basic chemical quantity. Other chemical quantities will refer to it. This screencast is the beginning of a series on chemical calculations (stoichiometry). They do not contain exercises and excessive explanations! Original: "Wolfgang D

09 Volume calculations for gases

This screencast also refers to the amount of substance n. The molar volume is introduced and a mathematical formula for calculating volume is introduced. The screencast does not contain any detailed derivations or exercises! Original: "Wolfgang Dukorn" Original: German. All translations in this vi

09 Stoichiometric Calculations - Example Task

On the basis of an example problem, the stoichiometric calculations in chemistry are explained. It calculates the mass of a product when only a certain mass of a starting material is available. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been done by the alugh

08 Classification of Substances

In chemistry, substances are divided into different groups. This screencast gives a short and theoretical overview of this classification. An initial relationship between elements and compounds is essential. Original: "Wolfgang Dukorn" Original: German. All translations in this video have been don

08 Decomposition of a pure substance

Pure substances can be analysed (broken down) by chemical reactions. In the process, elements are created. The important experiment of Hoffman's decomposition apparatus is presented and the proof for hydrogen and oxygen gas is shown. The results of the experiment are part of the attendance phase at