Chemistry WCH13/01 October 2021
Edexcel
International AS/A Level
Chemistry (WCH)
Oct
2021
2. Geraniol functional group analysis–alcohol and alkene tests, steam distillation setup, separation with drying agent, safety precautions, flame test, hydrogenation reaction condition and product structure
3. Enthalpy change determination–hydration of anhydrous copper(II) sulfate, temperature-time graph, calorimetry data interpretation, source of error, Hess′s law application, feasibility of direct hydration measurement
4. Chemical clock investigation–reaction rate calculation from time-temperature graph, rate vs temperature trend, experimental repeat necessity, adjusting time interval through reagent concentration
5. Titration analysis–sodium hydroxide titration with HCl, titre table completion, anomaly exclusion rationale, concentration calculation, burette uncertainty, phenolphthalein endpoint color change
معلم موافق رایگان بودن است.
1. Strontium compound identification–cation flame test, anion detection using barium chloride and silver nitrate, thermal decomposition feasibility, strontium nitrate breakdown products and tests2. Geraniol functional group analysis–alcohol and alkene tests, steam distillation setup, separation with drying agent, safety precautions, flame test, hydrogenation reaction condition and product structure
3. Enthalpy change determination–hydration of anhydrous copper(II) sulfate, temperature-time graph, calorimetry data interpretation, source of error, Hess′s law application, feasibility of direct hydration measurement
4. Chemical clock investigation–reaction rate calculation from time-temperature graph, rate vs temperature trend, experimental repeat necessity, adjusting time interval through reagent concentration
5. Titration analysis–sodium hydroxide titration with HCl, titre table completion, anomaly exclusion rationale, concentration calculation, burette uncertainty, phenolphthalein endpoint color change
پیش نمایش صفحه اول فایل
تعداد صفحات فایل : 16
باز نشر محتواها در فضای مجازی، ممنوع است.
omer uner 
