Chemistry pract Study guides, Class notes & Summaries

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AqA EXAMPRO A-LEVEL CHEMISTRY Practice Paper 2 2022 Summer QP Popular
  • AqA EXAMPRO A-LEVEL CHEMISTRY Practice Paper 2 2022 Summer QP

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  • A-LEVEL CHEMISTRY Practice Paper 2 2022 1 The following table gives the names and structures of some structural isomers with the molecular formula C5H10. Name of isomer Structure Isomer 1 pent-2-ene CH3CH = CHCH2CH3 Isomer 2 cyclopentane Isomer 3 3-methylbut-1-ene (CH3)2CHCH = CH2 Isomer 4 2-methylbut-2-ene (CH3)2C = CHCH3 Isomer 5 2-methylbut-1-ene H2C = C(CH3)CH2CH3 (a) Isomer 1 exists as E and Z stereoisomers. (i) State the meaning of the term ...
  • Uploaded 25-05-2022
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AqA EXAMPRO A-LEVEL CHEMISTRY Practice Paper 2 2022 Summer Markscheme Popular
  • AqA EXAMPRO A-LEVEL CHEMISTRY Practice Paper 2 2022 Summer Markscheme

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  • A-LEVEL CHEMISTRY Practice Paper 2 2022 Mark scheme M1 (Compounds / molecules with) the same structural formula 2 Penalise M1 if ‘same structure’ or ‘different structural / displayed formula’. M2 with atoms / bonds / groups arranged differently in space OR atoms / bonds / groups with different spatial arrangements / different orientation Ignore references to ‘same molecular formula’ or ‘same empirical formula’. Mark independently. (ii) 1 Credit C–H3C Credit C2H5 ...
  • Uploaded 25-05-2022
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AQA Exampro A-LEVEL CHEMISTRY Practice Paper 1
  • AQA Exampro A-LEVEL CHEMISTRY Practice Paper 1

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  • AQA Exampro A-LEVEL CHEMISTRY Practice Paper 1 In this question, give all values of pH to 2 decimal places. (a)The ionic product of water has the symbol Kw (i)Write an expression for the ionic product of water. __________________________________________________________ (1) (ii)At 42°C, the value of Kw is 3.46 × 10−14 mol2 dm−6. Calculate the pH of pure water at this temperature (to 2 decimal places). __________________________________________________________ ______________________...
  • Uploaded 09-07-2022
  • by quizzpro
AQA EXAMPRO A-LEVEL CHEMISTRY Practice Paper 3 2022 Summer QP
  • AQA EXAMPRO A-LEVEL CHEMISTRY Practice Paper 3 2022 Summer QP

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  • A-LEVEL CHEMISTRY Practice Paper 3 2022 Summer 1 A 5.00 g sample of potassium chloride was added to 50.0 g of water initially at 20.0 °C. The mixture was stirred and as the potassium chloride dissolved, the temperature of the solution decreased. (a) Describe the steps you would take to determine an accurate minimum temperature that is not influenced by heat from the surroundings. (b) The temperature of the water decreased to 14.6 °C. Calculate a value, in kJ mol−1, for the enthalpy o...
  • Uploaded 25-05-2022
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Chemistry practicals work guide
  • Chemistry practicals work guide

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  • The document deal with procedures and workings involved in chemistry practicals
  • Uploaded 01-03-2022
  • by kubaijoel
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AQA EXAMPRO A-LEVEL CHEMISTRY PRACTICE PAPER 2
  • AQA EXAMPRO A-LEVEL CHEMISTRY PRACTICE PAPER 2

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  • AQA EXAMPRO A-LEVEL CHEMISTRY PRACTICE PAPER 2 The following table gives the names and structures of some structural isomers with the molecular formula C5H10. Name of isomer Structure Isomer 1 pent-2-ene CH3CH = CHCH2CH3 Isomer 2 cyclopentane Isomer 3 3-methylbut-1-ene (CH3)2CHCH = CH2 Isomer 4 2-methylbut-2-ene (CH3)2C = CHCH3 Isomer 5 2-methylbut-1-ene H2C = C(CH3)CH2CH3 (a)Isomer 1 exists as E and Z stereoisomers. (i)State the meaning of the term stereoisomers. ___________...
  • Uploaded 09-07-2022
  • by quizzpro