250 prompts matching "Exam practice: Evaporation to dryness and its limitations"
Spot my mistake: Treating concentration and strength as the same thing
Act as my SS2 Chemistry tutor. Show me a worked answer on treating concentration and stren
Calculation practice: Calculating pH from hydrogen ion concentration
Act as my SS2 Chemistry tutor. Walk me through calculating pH from hydrogen ion concentrat
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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Explain back: Primary standards, and what makes a substance suitable
I have just studied primary standards, and what makes a substance suitable in my SS2 Chemi
Calculation practice: Preparing a solution of a stated concentration
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Calculation practice: Calculating the purity of a sample from titration data
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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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Quiz me: Exothermic and endothermic changes distinguished
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Explain back: The standard enthalpy of formation
I have just studied the standard enthalpy of formation in my SS2 Chemistry class. Let me e
Real-life Nigeria: Fuels and their heating values in Nigeria
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Quiz me: The factors that change the rate of a reaction
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Calculation practice: Calculating rate from a graph of concentration against time
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Quiz me: The factors that affect solubility
Act as my SS2 Chemistry tutor and quiz me on the factors that affect solubility. Ask five
Explain back: Saturated and supersaturated solutions
I have just studied saturated and supersaturated solutions in my SS2 Chemistry class. Let
Calculation practice: Calculating solubility in moles per cubic decimetre
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Real-life Nigeria: Fractional crystallisation and the uses made of it
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Quiz me: What causes temporary and what causes permanent hardness
Act as my SS2 Chemistry tutor and quiz me on what causes temporary and what causes permane
Quiz me: The major air pollutants and where they come from
Act as my SS2 Chemistry tutor and quiz me on the major air pollutants and where they come