250 prompts matching "Calculating the activity remaining after several half-lives"
Exam practice: The electrolysis of molten and of aqueous compounds compared
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Explain back: Metals and their extraction reviewed
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Practice set: Non-metals and their compounds reviewed
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Spot my mistake: The errors most often made in first-term SS2 Chemistry
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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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Practice set: Amphoteric substances and how they behave
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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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Quiz me: The standard solution and how one is prepared
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Practice set: The apparatus of volumetric analysis and its correct use
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Exam practice: The procedure for a standard acid-base titration
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Spot my mistake: Rinsing the burette with water before filling it
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Teach me: The mole ratio in a titration calculation
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Practice set: Finding the concentration of an unknown acid
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Exam practice: Finding the concentration of an unknown alkali
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Chemistry at work: The accuracy demanded of an analytical chemist
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