346 prompts matching "Exam practice: Measuring rate by volume of gas or by loss of mass"
Calculation practice: Calculating relative atomic mass from isotopic data
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Calculation practice: Comparing two elements using their trend data
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Calculation practice: Predicting bond type from electronegativity difference
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Calculation practice: Multi-step mole conversions
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Calculation practice: Limiting reagent and percentage yield calculations
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Calculation practice: Calculating the mass crystallising out on cooling
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Calculation practice: Calculating the electricity needed to extract aluminium
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Calculation practice: Working out the oxidation state in a complex ion
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Teach me: What qualitative analysis sets out to find
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Spot my mistake: Adding excess reagent too early and losing a precipitate
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Teach me: The anions the syllabus expects you to identify
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Spot my mistake: Reporting a sulphate result without acidifying first
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Teach me: The standard solution and the primary standard
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Spot my mistake: Including a rough titre in the average
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Teach me: What makes a titration a redox titration
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Spot my mistake: Using hydrochloric acid to acidify a permanganate titration
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Teach me: The electrochemical cell, and how it differs from an electrolytic one
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Spot my mistake: Assuming the order matches the stoichiometric coefficient
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Teach me: The equilibrium constant and how it is written
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Spot my mistake: Including a pure solid in an equilibrium expression
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