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Coordinated science (double award) C1 notes
Notes aligned to Cambridge IGCSE syllabus points
£0.55 Preview RemoveCHM 2354 Aspirin Lab analytical chemistry
The purpose of this experiment was to determine the amount of acetylsalicylic acid contained in an aspirin tablet as a percent-weight concentration. To do this we titrated two acetyl salicylate solutions (one solution made using dissolved aspirin tablets in NaOH and the other using aspirin powder dissolved in NaOH) with standardized HCl. Using the data collected during these titrations, it can be calculated that each tablet contains approximately 80% acetylsalicylic acid. Determining that each tablet contains a high concentration of acetylsalicylic acid is important because the main beneficial properties of aspirin are caused by the presence of acetylsalicylic acid.
£12.50 Preview RemoveFuels -Introduction
General Aspects of Fuel: Organic fuels, Origin, classification and general aspects of fossil fuels. Solid fuels, Coal, carbonization of coal, manufacturing of coke by Beehive oven and by product oven method. Liquid fuels, Composition of petroleum, advantages and refining of petroleum. Cracking, reforming, polymerization and isomerization of refinery products. Synthetic petrol, Bergius and Fischer Tropsch process. Knocking, octane number and anti-knocking agents. Gaseous fuels, Advantages, manufacturing, composition and calorific value of coal, gas and oil gas.
£3.75 Preview RemoveCalcium-based Biominerals in Ascidians and Molluscs
Course name: Bio-inorganic Chemistry Course level: 4000 (4th year undergraduate module) 4th year research essay which explains about the biominerals present in Ascidians and Molluscs - specifically calcium carbonate, which are present in 6 different structures: calcite, aragonite, vaterite, calcium carbonate monohydrate, calcium carbonate hexahydrate, and amorphous calcium carbonate. I also wrote more on the introduction to deepen other's understanding on what ascidians, molluscs, biominerals and calcium based biominerals actually are.
£1.50 Preview RemoveOCR 2024 GCSE Combined Science A (Gateway Science) J250/09 Chemistry (Higher Tier) With Marking Scheme Merged
OCR 2024 GCSE Combined Science A (Gateway Science) J250/09 Chemistry (Higher Tier) With Marking Scheme Merged COMBINED SCIENCE A Oxford Cambridge and RSA Friday 17 May 2024 – Morning GCSE (9–1) Combined Science A (Gateway Science) J250/09 Chemistry (Higher Tier) Time allowed: 1 hour 10 minutes You must have: • a ruler (cm/mm) • the Data Sheet for GCSE (9–1) Combined Science A (Chemistry) (inside this document) You can use: • a scientific or graphical calculator • an HB pencil * J H 2 5 0 0 9 * Please write clearly in black ink. Do not write in the barcodes. Centre number First name(s) Last name INSTRUCTIONS Candidate number • Use black ink. You can use an HB pencil, but only for graphs and diagrams. • Write your answer to each question in the space provided. If you need extra space use the lined pages at the end of this booklet. The question numbers must be clearly shown. • Answer all the questions. • Where appropriate, your answer should be supported with working. Marks might be given for using a correct method, even if your answer is wrong. INFORMATION • The total mark for this paper is 60. • The marks for each question are shown in brackets [ ]. • Quality of extended response will be assessed in questions marked with an asterisk (*). • This document has 20 pages. ADVICE • Read each question carefully before you start your answer. 2 Section A You should spend a maximum of 20 minutes on this section. Write your answer to each question in the box provided. 1 The diagram represents the particle model for a change in the arrangement of some particles. Which row describes this change? Type of change Explanation A chemical The particles break up and then join together in a different way. B chemical The particles stay the same but are arranged in a different way. C physical The particles break up and then join together in a different way. D physical The particles stay the same but are arranged in a different way. Your answer [1] 2 Which element in the table is a non-metal? Appearance at Melting point (°C) Electrical conductivity room temperature A silver liquid –39 high B orange-red solid 1083 high C yellow solid 113 low D silvery-white 3422 high Your answer
£5.00 Preview RemoveUnits of Measurement
Notes from the textbook "Modern Chemistry” by Holt, Rinehart, and Winston. Chapter 2: Measurements and Calculations; Section 2: Units of Measurement
£1.50 Preview RemoveTutorial (Spectrophotometry)
10 questions - theory and calculations For pre-university and university students.
£2.50 Preview RemoveAtmosphere Notes
A level Chemistry notes covering: -Composition of the Atmosphere -Ozone & CFCs -The (Enhanced) Greenhouse Effect -Group 4 elements -Collision Theory (inc. Maxwell-Boltzmann) -Catalysts -Infrared Radiation and Fission -Radicals (inc. Halogenation and Substitution reactions)
£2.50 Preview RemoveCharacteristics of Carbon-Based Compound
Carbon-based, or organic, compounds exhibit unique characteristics that make them essential to life and chemistry. Carbon atoms can form stable covalent bonds with other carbons as well as with elements like hydrogen, oxygen, and nitrogen. This bonding versatility leads to an immense diversity of organic molecules with varied structures and functions.
£3.75 Preview RemoveLaboratory Activity: STOICHIOMETRY
This is my laboratory activity in chemistry for engineers subject. It is all about STOICHIOMETRY.
£2.50 Preview RemoveIntroduction to the atom
What is an atom? subatomic particles and their description
£2.50 Preview RemoveSpecific Heat Capacity
The experiment calculates the specific heat capacity of an unknown metal and helps to identify the metal.
£2.50 Preview RemoveAMINO ACIDS IN DETAIL
These are very detailed notes on amino acids for anyone pursuing a Bachelor's Degree in Biochemistry or Human Biology. I use these notes to lecture Biochemistry at the University of Zambia.
£3.13 Preview RemoveAtomic Structure
Description: This detailed summary covers the essential concepts of Atomic Structure, focusing on atomic theory, historical atomic models, and quantum mechanics. Key topics include Dalton’s Atomic Theory, Rutherford’s and Bohr’s Models, quantum numbers, electron configuration, atomic spectra, and the Schrödinger equation. Ideal for students preparing for high school/undergraduate courses in Physics and Chemistry, this resource provides a clear understanding of atomic principles, models, and the quantum mechanical description of atoms. Perfect for revision and exam preparation. Subject: Physics, Chemistry Course: Atomic Structure, Quantum Mechanics Year: High School (Class 11-12) & 1st Year University
£1.00 Preview RemoveChemistry and Environment Details Questions and Answers
Environment constitutes air, water, soil, the atmosphere and the plants that are around us. Environmental chemistry deals with the chemical phenomena taking place around us, and the impact it has on the environment. It is also related to biology, agriculture, medicine and public health. In recent years air, water and soil are polluted heavily due to human activity causing threat to the very existence of life on the planet, earth. Earth is the only planet in the solar system having conditions required for the survival of the living organisms.
£2.50 Preview RemoveANIMAL OR PLANT CELLS? A SCIENTIFIC INVESTIGATION
A scientific experiment for 7th-9th graders. The experiment was about investigating someone's murder and we had to find out if the tissue was plant tissue or human tissue. It includes pictures, conclusion, hypothesis, problem, experiment description, data analysis.
£2.05 Preview RemoveFinancial Markets
A financial market is a market in which people trade financial securities, commodities, and other fungible items of value at low transaction costs and at prices that reflect supply and demand.
£6.25 Preview RemoveExponential Functions
The notes contain a brief overall of Exponential Functions. The source is a prep course for the SAT called PrepScholar.
£2.50 Preview RemoveThis note is account 2nd chapter to helps you doing maths
This note important for tha upcoming exam
£0.50 Preview RemoveData and Statistical Thinking
These are introductory notes important for understanding the study of statistics. These are college level notes but they can also be used for high school classes and AP courses.
£3.75 Preview RemoveAntiderivative notes for Calculus 2
This is for everyone who needs detailed notes in Calculus 2. This is the first chapter called Antiderivative. My notes are cleared, in color, and detailed
£37.50 Preview Removeclass 12 integration
A basic(but extensive) review of all integrtation concepts for class 12 mathematics ,including formulaes
£3.13 Preview RemoveHigher physics motion, forces, newtons laws, special relativity etc
Unit 1 Higher physics notes including notes on: Equations of motion Newton's laws Forces and tension impulse and momentum energy gravitation special relativity time dilation and length contraction Doppler effect and Hubble's laws
£2.00 Preview RemoveNotes on the notion of continuity of functions (one-variable calculus)
The notes cover the definition along with elementary properties of continuous functions (of a single variable, as handled in a first calculus course). Moreover, complete proofs of stated results are given, such as the continuity of the composite of continuous functions. The note also covers the intermediate value theorem, and gives a complete proof of this as well. The note is written in a manner which makes it self-contained.
£7.50 Preview Remove