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2025 IBDP Biology, Chemistry and Physics Subject guides (specification)
The IB Diploma Programme have now released the new subject guides for Biology Chemistry and Physics, first examination 2025. Information regarding the publication of assessed student work.The assessed student work to accompany the new DP biology, DP chemistry and DP physics subject guides (first assessment 2025) will be published in September 2023. IBDP Biology, Chemistry… Read more
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Calculating the empirical formula of magnesium oxide. Classic chemistry experiment that always yields great results. Read more
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MolView – Amazing molecular modelling website for Chemistry, Biochemistry and Biology.
MolView is an intuitive, Open-Source web-application to make science and education more awesome! It allows students and teachers to visualise different molecules structures and examine their properties. MolView is connected to numerous databases publicly available to provide the required data such as PubChem, ChemSpider, ChEMBL, DrugBank, the Crystallography Open Database. Read more
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Quantitative Chemistry – calculating the percentage composition of iron in iron tablets.
Iron tablet titration is a common laboratory method used to determine the amount of iron present in a sample, such as an iron supplement tablet. This method involves reacting the iron in the tablet with a solution of potassium permanganate (KMnO4) to produce a purple colour. The endpoint of the titration is reached when the… Read more
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Calculating the Molecular mass of a gas
The purpose of this experiment is to measure the volume and mass of a sample of butane, and to use these values to determine the molar mass. Read more
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Titration – Exam Practice
Titration – Exam practice Read more
Practical-Chemistry.com 