500 prompts matching "Working out the formula mass of a compound"
Exam practice: Recording and averaging concordant titres
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Calculation practice: Finding molarity from titre, volume and mole ratio
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Practice set: Iodine and thiosulphate titrations
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Spot my mistake: Using hydrochloric acid to acidify a permanganate titration
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Calculation practice: Calculating concentration from a redox titration
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Calculation practice: Applying Faraday's laws to an electrolysis calculation
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Practice set: Calculating Kc from equilibrium concentrations
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Exam practice: Applying Le Chatelier's principle to industrial processes
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Spot my mistake: Including a pure solid in an equilibrium expression
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Calculation practice: Finding an equilibrium concentration from K
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Spot my mistake: Using bond enthalpies for a reaction involving liquids
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Calculation practice: Deducing a structure from percentage composition
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Explain back: Electrochemistry reviewed
I have just studied electrochemistry reviewed in my SS3 Chemistry class. Let me explain it
Practice set: Kinetics and equilibrium reviewed
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Practice set: Reforming, isomerisation and octane number
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Spot my mistake: Assuming every fuel burns to carbon dioxide and water alone
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Explain back: How a soap molecule lifts away dirt
I have just studied how a soap molecule lifts away dirt in my SS3 Chemistry class. Let me
Spot my mistake: Expecting a detergent to fail in hard water as soap does
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Spot my mistake: Assuming every coloured substance is a dye
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Exam practice: Galvanising, sacrificial protection and cathodic protection
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