239 prompts matching "Calculating an Rf value from measurements"
Exam practice: Electrolysis and electrochemistry reviewed
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Real-life Nigeria: Linking bonding, structure and properties together
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Chemistry at work: Preparing a revision plan for the SS2 first term
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Teach me: The Bronsted-Lowry definition of acids and bases
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Explain back: The strength of an acid and the degree of ionisation
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Exam practice: The hydrolysis of salts and the pH that results
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Spot my mistake: Treating concentration and strength as the same thing
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Real-life Nigeria: Buffer solutions and where they matter
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Teach me: What volumetric analysis sets out to do
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Explain back: Primary standards, and what makes a substance suitable
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Exam practice: The procedure for a standard acid-base titration
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Real-life Nigeria: Volumetric analysis in Nigerian quality control
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Explain back: Calculating the average titre correctly
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Exam practice: Finding the concentration of an unknown alkali
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Spot my mistake: Averaging titres that are not concordant
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Real-life Nigeria: Back titration, and when it is used
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Chemistry at work: The accuracy demanded of an analytical chemist
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Teach me: Enthalpy and the enthalpy change of a reaction
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Explain back: The standard enthalpy of formation
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Exam practice: The energy profile diagram and activation energy
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