Excess reagent Study guides, Class notes & Summaries
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AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN227404201* IB/M/Jun22/E7 7404/2 For Examiner’s Use Question Mark 1
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AQA 
AS 
CHEMISTRY 
7404/2 
Paper 2 Organic and Physical Chemistry 
Question Paper + Mark scheme [MERGED] 
June 2022 
*JUN* 
IB/M/Jun22/E7 7404/2 
For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
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. 
Instructions...
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AQA A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Version: 1.0 Final *Jun237405201* IB/M/Jun23/E8 7405/2QUESTION PAPER & MARKING SCHEME/ [MERGED] Marl( scheme June 2023
- Exam (elaborations) • 66 pages • 2024 Popular
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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...
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AS	 CHEMISTRY Paper 2 Organic and Physical Chemistry Tuesday 23 May 2023	Morning
- Exam (elaborations) • 41 pages • 2023
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CHEM 162 Experiment 5: Spectrochemical Series Complete Solution 2023
- Exam (elaborations) • 5 pages • 2023
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CHEM 162 Experiment 5: Spectrochemical Series Complete Solution 2023. Part A: Preparation of cis-Bis(glycinato)copper(II) monohydrate, Cu(gly)2 
·H2O 
mass CuSO4 
·5H2O g 
mass NH2CH2CO2H (glycine) g 
molar mass CuSO4 
·5H2O g/mole 
moles CuSO4 
·5H2O moles 
molar mass NH2CH2CO2H (glycine) g/mole 
moles NH2CH2CO2H (glycine) moles 
limiting reagent is 
molar mass Cu(gly)2 
·H2O g/mole 
(Note for molar mass: each glycine loses the acidic proton in order to be a bidentate ligand) 
mass Cu(gly)...
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Practicals Chemistry AQA A-level Rated A+
- Exam (elaborations) • 24 pages • 2023
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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...
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AQA A-level CHEMISTRY 7405/2 Paper 2 Organic and Physical Chemistry Version: 1.0 Final *Jun237405201* IB/M/Jun23/E8 7405/2// QUESTION PAPER & MARKING SCHEME/ [MERGED] Marl( scheme June 2023
- Exam (elaborations) • 66 pages • 2024
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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...
-
URINALYSIS: CHEMICAL AND MICROSCOPIC EXAMINATION MLS
- Exam (elaborations) • 9 pages • 2024
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41) Which of the following can give a false-negative urine protein reading? 
A) contamination 
B) heavy mucus 
C) presence of blood 
D) very dilute urine - Answer-D 
 
42) The pH of the urine specimen measures the: 
A) free sodium ions 
B) free hydrogen 
C) total acid excretion 
D) volatile acids - Answer-B 
 
45) The principle of the reagent strip test for urine protein depends on: 
A) an enzyme reaction 
B) protein errors of indicators 
C) copper reduction 
D) the toluidine - Answer-B 
 
47) R...
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MLT ASCP Practice Questions With Correct Answers
- Exam (elaborations) • 29 pages • 2022
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A; 
Animals serve as a reservoir of infection" is the correct answer because Shigella only infects humans while Salmonella is found in many animals. Both have diarrhea as the major symptom. Endotoxin is produced by all gram negative bacteria and exotoxin is only produced by Shigella. 
A major difference between Salmonella enterica and Shigella infections is that only in salmonellosis can: 
 
A. animals serve as a reservoir of infection 
B. diarrhea become the major symptom 
C. endotoxin play a ...
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UCSB CHEM 6AL Final Exam Questions With 100% Correct Answers.
- Exam (elaborations) • 16 pages • 2024
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Intermolecular forces and how they affect physical properties /purification techniques: dipole-dipole, 
electrostatic, hydrogen, ion, london, - Answer-*dipole-dipole*: polar covalent molecules such as 
aldehydes and ketones. positive and negative end. polar molecules must be close together for force 
to be significant. weaker than ion-dipole forces; increase with polarity of molecule. 
*electrostatic*: occur between charged species, cations and anions, and are responsible for very high 
MP and B...
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MMSC 402 Exam 2 (100% Correct Answers)
- Exam (elaborations) • 20 pages • 2023
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reagent strips correct answers -chemical urine tests that are composed of chemically impregnated absorbent pads on a plastic strip 
-can test for pH, protein, glucose, ketones, blood, bilirubin, etc. 
-some test for many different reagents at once 
-multistix and chemstrip are 2 main brands of multi-reagent tests 
-many different colors indicate semi-quantitivative results, can be compared to color chart provided with tests 
 
reagent strip technique correct answers -dip the strip briefly into w...
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