500 prompts matching "The scientific method as chemists use it"
Exam practice: Heavy metal pollution and its effects on health
Act as my SS3 Chemistry teacher setting exam questions. Give me five exam-style questions
Exam practice: Concentration, dilution and titration calculations
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Exam practice: Empirical and molecular formula from composition
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Exam practice: A full objective paper under examination conditions
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Exam practice: Solubility expressed in different units
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Exam practice: Preparing an insoluble salt by precipitation
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Exam practice: Nitric acid, its manufacture and its reactions
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Exam practice: Removing permanent hardness by chemical and ion-exchange methods
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Quiz me: The preliminary tests carried out on an unknown salt
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Practice set: Identifying cations with sodium hydroxide solution
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Spot my mistake: Adding excess reagent too early and losing a precipitate
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Real-life Nigeria: The confirmatory tests for the common cations
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Explain back: Testing for sulphate and for sulphite
I have just studied testing for sulphate and for sulphite in my SS3 Chemistry class. Let m
Spot my mistake: Reporting a sulphate result without acidifying first
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Calculation practice: Finding molarity from titre, volume and mole ratio
Act as my SS3 Chemistry tutor. Walk me through finding molarity from titre, volume and mol
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
Act as my SS3 Chemistry tutor. Walk me through calculating concentration from a redox titr
Exam practice: Calculating the e.m.f. of a cell
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Spot my mistake: Reversing the sign of a half-cell potential wrongly
Act as my SS3 Chemistry tutor. Show me a worked answer on reversing the sign of a half-cel