Paper chromatography - Study guides, Class notes & Summaries

GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Version: 1.0 Final *JUN238464C2H01* IB/M/Jun23/E7 8464/C/2H For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Tuesday 13 June 2023 Morning Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at t...

In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A.Hydrogen bonding B.Solute concentration C.Stationary phase concentration D.Thickness of paper - The correct answer is A. This is an Organic Chemistry question that falls under the content category "Separation and purification methods." The answer to this question is A because the...

GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Version: 1.0 Final *JUN238464C2H01* IB/M/Jun23/E7 8464/C/2H For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL Tuesday 13 June 2023 Morning Time allowed: 1 hour 15 minutes Materials For this paper you must have: • a ruler • a scientific calculator • the periodic table (enclosed). Instructions • Use black ink or black ball-point pen. • Pencil should only be used for drawing. • Fill in the boxes at t...

AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Chemistry Paper 2H Mark scheme June 2023. CH4 + 2 O2 → CO2 + 2 H2O 1 AO2 5.7.1.3 Question Answers Extra information Mark AO / Spec. Ref. 01.2 hydrocarbon molecules in petrol have fewer carbon atoms than those in diesel petrol has a lower boiling point (range) than diesel allow converse throughout allow petrol is more flammable than diesel allow petrol is less viscous than diesel 1 1 AO3 5.7.1.3 Question Answers Extra information M...

2 Answer all questions in the spaces provided. 0 1 . 1 A student used chromatography to separate the different photosynthetic pigments in a chlorophyll solution. She had the following materials. Chromatography paper A ruler and pencil Suitable glassware A solvent (solvent A) 2 cm3 of the chlorophyll solution Describe how she could use these materials to separate the photosynthetic pigments by chromatography. [4 marks] 0 1 . 2 Using solvent A, the student separated five pigments. S...

VDistinction Level BTEC Applied Science Assignment C, Chromatography. Soluble :solubility is the degree to which a substance dissolves in a solvent to make a solution Solvent : the substance in which a solute dissolved to produce a homogeneous mixture Mobile phase : the liquid that transports the substance mixture through the absorbing material which travels along the stationary phase and carries the substance components with it Stationary phase : the solid material that absorbs the mixture ...

In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? A.Hydrogen bonding B.Solute concentration C.Stationary phase concentration D.Thickness of paper - correct answer B and D are dumb options. Knock them out. hydrogen bonding to the stationary phase will determine the relative rate of migration of the various components in the sample...

NMTCB PET certification Review Study Guide 2024 with complete solution Rb-82 Genertaor Alert Level - Answer ️️ -14L of eleute volume reached, or Sr-82 level 0.002uCi/mCi of Rb-82, or Sr-85 level 0.02uCi/mCi of Rb-82 Actions for Rb82 Generator Alert Level - Answer ️️ -Test after every 750 mL has passed through generator Stop using Rb-82 generator if - Answer ️️ -17L of eleute volume reached, or 42 days post calibration date, or Sr82 levenis 0.01uCi/mCi of Rb82, or Sr85 level re...

What is the charge of a proton? - Answer +1 What is the charge of a neutron? - Answer 0 What is the charge of an electron? - Answer -1 What is the relative mass of a proton? - Answer 1 What is the relative mass of a neutron? - Answer 1 What is the relative mass of an electron? - Answer Very small How many types of atoms do elements contain? - Answer Only one type What are compounds? - Answer Substances containing two or more different elements that are chemic...

pure substance - Ans .single element, compound or substance not mixed with another substance physical processes - Ans .mixtures can be separated by... simple distillation - Ans .evaporating water and condensing it in a separate container fractional distillation - Ans .evaporating liquids with different boiling points filtration - Ans .screening and sieving to remove solids chromatography - Ans .using a solvent to separate pigments so you can identify them crystallisation - Ans .ev...