Quantitative Analysis
3 past-paper questions on Quantitative Analysis · examined 2024–2024.
20243 questions
You are not expected to do any practical work for this question. Argentan is an alloy containing only zinc, nickel and copper. Zinc and nickel both react with dilute hydrochloric acid. Copper does not react with dilute hydrochloric acid. Plan an investigation to find the percentage by mass of copper in a powdered sample of argentan. Your plan must include the use of common laboratory apparatus, argentan and hydrochloric acid. No other chemicals should be used. Your plan must include: the apparatus needed, the method to use and the measurements to take, procedures to ensure that the percentage
Plan an investigation to find the percentage by mass of zinc in a powdered sample of Muntz metal which contains only zinc and copper. Your plan must include the use of common laboratory apparatus, Muntz metal and sulfuric acid. No other chemicals should be used. Your plan must include: the apparatus needed, the method to use and the measurements to take, procedures to ensure that the percentage determined is as accurate as possible, how the measurements are used to determine the percentage by mass of zinc in the sample of Muntz metal.
Plan an investigation to find the percentage by mass of copper in a powdered sample of argentan.
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