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Students complete 50–55 items in 100–110 minutes, covering data evaluation and error analysis, solutions and volumetric analysis, gravimetry and solubility, acid-base chemistry and chemical equilibria, electrochemistry, spectroscopy including Beer’s law and UV-Vis, and separation via chromatography. The exam emphasizes significant figures, statistics, calibration curves, internal standard methods, titrations, equilibrium and pH, buffers, pKa, solubility product, common ion effects, and electrochemical calculations and instruments. 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Do not open the exam paper until the instructor signals you to begin.","https://schema.org",{"og:url":83,"og:type":124,"og:title":65,"og:site_name":95,"og:description":67},"article",{"robots":126,"canonical":83},"index,follow",{"doc_id":128,"site_id":62},331627,1790234066,{"code":4,"msg":5,"data":131},{"doc_id":128,"user_id":132,"nickname":92,"user_avatar":133,"doc_module":4,"category_id":19,"category_name":20,"doc_title":65,"doc_description":67,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":34,"is_deleted":4,"is_public":8,"is_downloadable":8,"audit_status":8,"page_count":8,"language":139,"language_code":63,"site_id":62,"html_lang":63,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":67,"update_tm":143,"read_time":81,"preview_page_count":4},687197207919,"https://ap-avatar.wpscdn.com/avatar/a000253d6f5f7c60be?x-image-process=image/resize,m_fixed,w_180,h_180&k=1779446848396160552","ACS DIVISION OF CHEMICAL EDUCATION EXAMINATION  \nANALYTICAL CHEMISTRY  \nScore =Number of right answers  \n50-55 items—100~110 minutes  \nTO THE STUDENT:  \nAll electronic devices with photo-taking capability are prohibited.  \nOnly non-programmable calculators are permitted.  \nAll answers are to be marked on this answer sheet, not in the test booklet.  \nDO NOT WRITE ANYTHING IN THE BOOKLET!  \nDo not open the exam paper until your instructor gives you the signal to begin.  \nThe periodic table and other useful information will be provided along with the test paper.  \nSections:  \n(1) Data Evaluation and Error Analysis—6-7 questions  \n(2) Solutions and Volumetric Analysis—9-10 questions  \n(3) Gravimetry and Solubility—4-5 questions  \n(4) Acid-Base Chemistry (Chemical equilibria)—8-9 questions  \n(5) Electrochemistry—6-7 Questions  \n(6) Spectroscopy (Beer’s law, UV-Vis, atomic adsorption/emission)—10-11 Questions  \n(7) Separation (Chromatography)—5-6 Questions  \nYou need to review all aspects of analytical chemistry, including errors, significant figures, statistical analysis (e.g., degrees of freedom, probability, t-test, Q-test, confidence intervals), calibration (working) curves (equation, slope, intercept), internal standard addition methods, concentration units conversion (ppm, ppt, mM, M…%), basic lab equipment (flask, balance…titrations), standard solutions, buffers, all types of titrations, equilibrium, mass and charge balances, pH of weak acid/base, slat and buffer calculations, pKa/b, titration curve and derivative titration curve, selection of indicators, solubility product and its calculation for insoluble compounds, common ions effect, electrochemistry (redox potential, oxidation, reduction, anode, cathode, electrodes, salt bridge, balance equations, galvanic cell, electrolytic cell, pH electrode, Nernst equation, ion selective electrodes), Beer’s law, spectroscopic techniques (atomic and molecular adsorption/emission), instruments, gas and liquid chromatography (principle, basic theory, capacity factors, elution time/solvent, plate number, reversed/normal HPLC) .  \nThe test combines fundamental analytical chemistry and instrumental analysis.","cbCaivfhWwJX9o1t","https://ap.wps.com/l/cbCaivfhWwJX9o1t","pdf",163066,"English","# Sections\n## Data Evaluation and Error Analysis\n## Solutions and Volumetric Analysis\n## Gravimetry and Solubility\n## Acid-Base Chemistry (Chemical equilibria)\n## Electrochemistry\n## Spectroscopy (Beer’s law, UV-Vis, atomic adsorption/emission)\n## Separation (Chromatography)","[{\"question\":\"What are the exam duration and number of items?\",\"answer\":\"The exam has 50–55 items to be completed in 100–110 minutes.\"},{\"question\":\"What materials are allowed and what is prohibited?\",\"answer\":\"All photo-taking electronic devices are prohibited. Only non-programmable calculators are permitted.\"},{\"question\":\"Where should answers be marked and when may the exam be opened?\",\"answer\":\"Answers must be marked on the answer sheet, not in the test booklet. Do not open the exam paper until the instructor signals you to begin.\"}]","ACS Division of Chemical Education Examination - Analytical Chemistry | PDF",1789994367]