223 prompts matching "Exam practice: Nitric acid, its manufacture and its reactions"
Calculation practice: Applying Faraday's first law to a calculation
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Real-life Nigeria: Electroplating and metal purification in Nigeria
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Explain back: Metals and their extraction reviewed
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Calculation practice: A mixed set of first-term SS2 chemistry calculations
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Real-life Nigeria: Linking bonding, structure and properties together
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Spot my mistake: Treating concentration and strength as the same thing
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Calculation practice: Calculating pH from hydrogen ion concentration
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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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Explain back: Primary standards, and what makes a substance suitable
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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
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Calculation practice: Using Hess's law to find an unknown enthalpy change
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Real-life Nigeria: Fuels and their heating values in Nigeria
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Calculation practice: Calculating rate from a graph of concentration against time
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Explain back: Saturated and supersaturated solutions
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