Chemistry 9701/12 May June 2023 | Cambridge AS Level Past Papers With Mark Scheme
1. Calculation of the volume of methyl benzoate and mass of NaOH required in benzoic acid preparation.
2. Explanation of the preparation steps for 1.00 mol/dm³ NaOH solution and the impact of using lower concentration NaOH.
3. Description of refluxing, acidification, and filtration procedures in benzoic acid synthesis.
4. Calculation of theoretical and percentage yield of benzoic acid.
5. Analysis of pH and Kw changes with temperature in pure water and enthalpy calculations.
6. Identification of correct reactions and molecular behavior in various chemical processes and equilibrium situations.
باز نشر محتواها در فضای مجازی، ممنوع است.

باز نشر محتواها در فضای مجازی، ممنوع است.