Edexcel A Level Chemistry:復習筆記1.7.2 Titrations
Titration Calculations Volumetric Analysis Volumetric analysis?is a process that uses the volume and concentration of one chemical reactant (standard solution) to determine the concentration...
Edexcel A Level Chemistry:復習筆記1.7.1 Reacting Volume Calculations
Reacting Volume Calculations Reacting volume calculations are commonly associated with the reactions of gases All gases occupy the same volume under the same conditions At room temperature a...
Edexcel A Level Chemistry:復習筆記1.6.5 Amount of Substance Calculations
Amount of Substance Calculations As previously discussed, the amount of substance can be defined as the number of particles in a substance,?n, measured in moles (often abbreviated to mol) In...
Edexcel A Level Chemistry:復習筆記1.6.4 The Mole & the Avogadro Constant
The Mole & Avogadro The?Avogadro constant?(NA?or?L) is the number of particles equivalent to the relative?atomic?mass?or?molecular mass?of a substance The Avogadro constant applies to at...
Edexcel A Level Chemistry:復習筆記1.6.3 Applying Equations
Relating Observations to Chemical Equations Chemical equations give information about the reaction that is taking place Balanced equations show the number of particles participating in the r...
Edexcel A Level Chemistry:復習筆記1.6.2 Balanced Equations
Writing Balanced Equations A?symbol?equation is a shorthand way of describing a chemical reaction using?chemical symbols?to show the number and type of each atom in the reactants and product...
Edexcel A Level Chemistry:復習筆記1.6.1 Empirical & Molecular Formulae
Empirical & Molecular Formula Definitions The?molecular?formula?is the formula that shows the?number?and?type?of each atom in a molecule E.g. the molecular formula of ethanoic acid is C2...
適合11年級學生參加的國際競賽有哪些？
很多學生和家長都有一個誤解，以為參加學術活動不用著急，時間有的是，直到高中畢業都可以 “慢慢比”。要知道學術活動一般流程較長，出成績時間也慢，從初賽到出結果可能會用到半年甚至更久的時間。如果想將成績用...
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近年來，隨著全球經濟、科學及技術迅速發展，對人才教育的要求也隨之增加，傳統教育已然不太滿足社會轉變的需求，在此情形下，STEM教育應運而生，是目前教育的潮流趨勢，對于孩子的成長和發展更是有著明顯的優勢...
