Flask Study guides, Class notes & Summaries

AQA AS CHEMISTRY 7404/1 Paper 1 Inorganic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E7 7404/1 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 Section B TOTAL Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instruc...

AQA A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Version: 1.0 Final *Jun* IB/M/Jun23/E8 7405/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 TOTAL Monday 19 June 2023 Afternoon Time allowed: 2 hours Materials For this paper you must have: • the Periodic Table/Data Booklet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions • Us...

AQA A-level CHEMISTRY 7405/3 Paper 3 Version: 1.0 Final *JUN* IB/M/Jun23/E9 7405/3 For Examiner’s Use Question Mark 1 2 3 4 5 6 Section B TOTAL Friday 23 June 2023 Morning Time allowed: 2 hours Materials For this paper you must have: • the Periodic Table/Data Booklet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions • Use black ink or black ball-poin...

AQA AS CHEMISTRY 7404/1 Paper 1 Inorganic and Physical Chemistry Version: 1.0 Final *JUN* IB/M/Jun23/E7 7404/1 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 Section B TOTAL Tuesday 16 May 2023 Morning Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructi...

AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/2H Higher Tier Chemistry Paper 2H Question Paper + Mark scheme [MERGED] June 2022 *junc2h01* IB/M/Jun22/E11 8464/C/2H For Examiner’s Use Question Mark 1 2 3 4 5 6 TOTAL 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 ...

AQA GCSE PHYSICS 8463/2H Paper 2 Higher Tier Version: 1.0 Final *JUN2384632H01* IB/M/Jun23/E9 8463/2H For Examiner’s Use Question Mark 1 2 3 4 5 6 7 8 9 TOTAL Friday 16 June 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: • a ruler • a scientific calculator • a protractor • the Physics Equations Sheet (enclosed). Instructions • Use black ink or black ball-point pen. Pencil should only be used for drawing. • Fill in ...

Practicals Chemistry AQA A-level Rated A+ Required Practical 1 - titration and making a standard solution Making a standard solution 1. weigh the required mass of solid using a sample bottle on a 2 dp balance. 2. transfer the solid into a beaker using distilled water to wash it out- preventing any solid remaining in the sample bottle. 3. reweigh the sample bottle and work out the difference. 4. Add 100cm3 of distilled water to the beaker to dissolve the solid (small volume of water) using a...

A student investigated the rate of the reaction between zinc and sulfuric acid. Hydrogen gas is produced during this reaction. This is the method used. 1. Add 50 cm3 of sulfuric acid to a conical flask. 2. Add 2.0 g of zinc to the conical flask. 3. Quickly put a stopper in the conical flask and start a timer. 4. Measure the time taken to collect 20 cm3 of gas. 5. Repeat steps 1 to 4 three more times. Suggest why the stopper must be put in the conical flask as quickly as possible in step ...

2023 AQA GCSE PHYSICS 8463/2H Paper 2 Higher Tier Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] GCSE PHYSICS Higher Tier Paper 2 H Friday 16 June 2023 Morning Time allowed: 1 hour 45 minutes Materials For this paper you must have: • a ruler • a scientific calculator • a protractor • the Physics Equations Sheet (enclosed). Instructions • Use black ink or black ball-point pen. Pencil should only be used for drawing. • Fill in the boxes at the top of this pa...

CHEM 104 Experiment 2 Equilibrium Reactions - Portage Learning The purpose of this experiment is to evaluate and study the equilibrium by measuring the equilibrium constant. Procedure: We performed 2 different experiments: o Determination of the equilibrium constant Kc o Study of LeChatelier’s principle Experiment #1: acetic acid vs. propyl alcohol 1. Summary: After gathering supplies, we created a solution of acetic acid and propyl alcohol in a small flask. At various time intervals, we then...