Titres Study guides, Class notes & Summaries

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OCR AS LEVEL CHEMISTRY A H032/02 JUNE 2022 FINAL MARK SCHEME - Depth in chemistry.
  • OCR AS LEVEL CHEMISTRY A H032/02 JUNE 2022 FINAL MARK SCHEME - Depth in chemistry.

  • Exam (elaborations) • 27 pages • 2023
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  • OCR AS LEVEL CHEMISTRY A H032/02 JUNE 2022 FINAL MARK SCHEME - Depth in chemistry. H032/02 Mark Scheme 6 11. Annotations available in RM Assessor Annotation Meaning Correct response Incorrect response Omission mark Benefit of doubt given Contradiction Rounding error Error in number of significant figures Error carried forward Level 1 Level 2 Level 3 Benefit of doubt not given Noted but no credit given Ignore Blank page H032/02 Mark Scheme 7 12. Abbreviations, annotations a...
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OCR AS LEVEL CHEMISTRY A H032/02 JUNE 2022 FINAL MARK SCHEME - Depth in chemistry.
  • OCR AS LEVEL CHEMISTRY A H032/02 JUNE 2022 FINAL MARK SCHEME - Depth in chemistry.

  • Exam (elaborations) • 27 pages • 2023
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  • OCR AS LEVEL CHEMISTRY A H032/02 JUNE 2022 FINAL MARK SCHEME - Depth in chemistry. H032/02 Mark Scheme 9 Question Answer Marks AO element 1 (a) (i) (Acid) releases H+ ions/ H+ donor  1 AO1.1 AL(ii) (weak acid) partially dissociates/ionises  1 AO1.1 IGa n• IGIG(b) (i) Titration 1 Titration 2 Titration 3 Final reading/ cm3 27.35 27.65 27.85 Initial reading/cm3 0.05 0.10 0.45 Titre/cm3 27.30 27.55 27.40 Initial and final readings All titration readings (× 6) correct...
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AQA A Level Chemistry  Paper 1 2022 SOLUTION 100%  REVISED 2023//2024
  • AQA A Level Chemistry Paper 1 2022 SOLUTION 100% REVISED 2023//2024

  • Exam (elaborations) • 9 pages • 2023
  • Bronsted-Lowry acid - ANSWER a proton donor. Bronsted-Lowry base - ANSWER proton acceptor What is H3O+? - ANSWER hydronium ion definition of pH - ANSWER -log10[H+] How do you get [H+] from ph? - ANSWER 10^(-pH) the ionic product of water - ANSWER [OH-][H+] Is dissociation an endo or exothermic reaction? - ANSWER endothermic Why is the concentration of water not included in Kw? - ANSWER The concentration of water is so large and constant the equilibrium equation can be simplified How do...
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AQA A Level Chemistry  Paper 1 2022 SOLUTION 100%  REVISED 2023//2024
  • AQA A Level Chemistry Paper 1 2022 SOLUTION 100% REVISED 2023//2024

  • Exam (elaborations) • 9 pages • 2023
  • AQA A Level Chemistry Paper 1 2022 SOLUTION 100% REVISED 2023//2024 Bronsted-Lowry acid - ANSWER a proton donor. Bronsted-Lowry base - ANSWER proton acceptor What is H3O+? - ANSWER hydronium ion definition of pH - ANSWER -log10[H+] How do you get [H+] from ph? - ANSWER 10^(-pH) the ionic product of water - ANSWER [OH-][H+] Is dissociation an endo or exothermic reaction? - ANSWER endothermic Why is the concentration of water not included in Kw? - ANSWER The concentration of water i...
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NURO 671 TEST 1 - MODULE 10 (PERINATAL INFECTION) |145 QUESTIONS AND ANSWERS
  • NURO 671 TEST 1 - MODULE 10 (PERINATAL INFECTION) |145 QUESTIONS AND ANSWERS

  • Exam (elaborations) • 27 pages • 2023
  • diseases with mother to child transmission HIV hepatitis HSV diseases with congenital versions of syndromes syphilis rubella what is fetal hydrops? fluid accumulation in 2+ compartments - pleural effusion - ascites - pericardial effusion what are long-term fetal physical/mental outcomes of pregnancy infections? - blindness/deafness - neuro and learning deficits - congenital anomalies what diseases do you screen teachers and daycare workers for? wh...
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AS Depth chemistry paper H032/02
  • AS Depth chemistry paper H032/02

  • Exam (elaborations) • 3 pages • 2023
  • AS Depth chemistry paper H032/02 the student is not confident that their titre is accurate suggest what the student should do next to reduce the effect of any random error in the titration - ANS-repeat titration until two titrations are concordant (0.01cm3 within) calculate mean titre from concordant titres
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AQA A Level Chemistry  Paper 1 2022 SOLUTION 100%  REVISED 2023//2024
  • AQA A Level Chemistry Paper 1 2022 SOLUTION 100% REVISED 2023//2024

  • Exam (elaborations) • 9 pages • 2024
  • Available in package deal
  • AQA A Level Chemistry Paper 1 2022 SOLUTION 100% REVISED 2023//2024 Bronsted-Lowry acid - ANSWER a proton donor. Bronsted-Lowry base - ANSWER proton acceptor What is H3O+? - ANSWER hydronium ion definition of pH - ANSWER -log10[H+] How do you get [H+] from ph? - ANSWER 10^(-pH) the ionic product of water - ANSWER [OH-][H+] Is dissociation an endo or exothermic reaction? - ANSWER endothermic Why is the concentration of water not included in Kw? - ANSWER The concentration of water i...
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AS chemistry paper H032/02 Practice  Questions And Answers
  • AS chemistry paper H032/02 Practice Questions And Answers

  • Exam (elaborations) • 3 pages • 2023
  • AS chemistry paper H032/02 Practice Questions And Answers Name the apparatus that the student should use to: - Make up the acid solution to 250.0cm3 -measure the 25.0cm3 portion of acid solution - CORRECT ANSWER-volumetric flask graduated pipette the student is not confident that their titre is accurate suggest what the student should do next to reduce the effect of any random error in the titration - CORRECT ANSWER-repeat titration until two titrations are concordant (0.01cm3 within...
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AS chemistry paper H032/02 Practice  Questions And Answers
  • AS chemistry paper H032/02 Practice Questions And Answers

  • Exam (elaborations) • 3 pages • 2023
  • AS chemistry paper H032/02 Practice Questions And Answers Name the apparatus that the student should use to: - Make up the acid solution to 250.0cm3 -measure the 25.0cm3 portion of acid solution - CORRECT ANSWER-volumetric flask graduated pipette the student is not confident that their titre is accurate suggest what the student should do next to reduce the effect of any random error in the titration - CORRECT ANSWER-repeat titration until two titrations are concordant (0.01cm3 within...
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