Avogadro Study guides, Class notes & Summaries

AQA AS level Chemistry exam 2024 questions with 100% correct answers Nucleons - ANSWERS Protons and neutrons Electrons (location) - ANSWERS Surrounding the nucleus Relative mass of an electron - ANSWERS 1/1840 Strong nuclear force - ANSWERS The way protons and neutrons are held together in the nucleus Electrostatic forces - ANSWERS The attraction between protons and electrons that hold them together in the atom Atomic Number (Z) - ANSWERS The number of protons in the nucleus Mass nu...

AQA 2023 AS CHEMISTRY QUESTIONS WITH 100% CORRECT ANSWERS Absolute temperature - ANSWERS Temperature measured in Kelvin Absolute zero - ANSWERS The lowest possible temperature theoretically achieveable - 273.15 degrees celius or zero Kelvin Acceleration - ANSWERS The stage in mass spectrometry where positive ions are speeded up by an electric field Acid rain - ANSWERS Rain that has been acidified by pollutants such as sulfur dioxide Actual yield - ANSWERS Mass of product obtained in a ...

AQA AS level Chemistry exam 2024 questions with 100% correct answers Nucleons - ANSWERS Protons and neutrons Electrons (location) - ANSWERS Surrounding the nucleus Relative mass of an electron - ANSWERS 1/1840 Strong nuclear force - ANSWERS The way protons and neutrons are held together in the nucleus Electrostatic forces - ANSWERS The attraction between protons and electrons that hold them together in the atom Atomic Number (Z) - ANSWERS The number of protons in the nucleus Mass nu...

Quantity speed of light in vacuo permeability of free space permittivity of free space magnitude of the charge of electron the Planck constant gravitational constant the Avogadro constant molar gas constant the Boltzmann constant the Stefan constant the Wien constant electron rest mass (equivalent to 5.5 × 10–4 u) magnitude of electron charge/mass ratio proton rest mass (equivalent to 1.00728 u) proton charge/mass ratio neutron rest mass (equivalent to 1.00867 u) gravitational fi...

AQA 2023 AS CHEMISTRY QUESTIONS WITH 100% CORRECT ANSWERS Absolute temperature - ANSWERS Temperature measured in Kelvin Absolute zero - ANSWERS The lowest possible temperature theoretically achieveable - 273.15 degrees celius or zero Kelvin Acceleration - ANSWERS The stage in mass spectrometry where positive ions are speeded up by an electric field Acid rain - ANSWERS Rain that has been acidified by pollutants such as sulfur dioxide Actual yield - ANSWERS Mass of product obtained in a ...

absolute zero Lowest possible temperature, 0K, object has minimum internal energy. acceleration Change of velocity per unit time. 00:31 01:24 activity of radioactive isotope Number of nuclei of the isotope that disintegrate per second. Becquerel (Bq) Unit of radioactive activity, 1Bq = 1 disintegration per second. amplitude Maximum displacement from equilibrium of oscillating object. angular displacement Angle an object in circular motion turns ...

AQA AS Chemistry Paper 1 – Inorganic and Physical Chemistry Predicted Paper 2023 with markscheme attached. Name …………………………………………………………………… Date ………………… 1 hour 30 minutes allowed You should have access to the AQA insert (periodic table and data sheet) to help with answering the questions. You should spend around 65 minutes on section A and 25 minutes on section B. Grade boundaries These are VERY rough guesses!...

Density - ratio of substances mass to volume. Intensive property- meaning the value is independent of the amount of substance Avogadro number - 6.022 x 10^22, 1 mole, term of measurement dimensional analysis - A method of using conversion factors and unit canceling to solve a unit conversion problem. exothermic - chemical reaction that yields a net release of energy in the form of heat endothermic - (of a chemical reaction or compound) occurring or formed with absorption of heat kinet...

Chemistry AQA AS 2023 Exam Questions And Answers Absolute temperature - ANSWER Temperature measured in Kelvin Absolute zero - ANSWER The lowest possible temperature theoretically achieveable -273.15 degrees celius or zero Kelvin Acceleration - ANSWER The stage in mass spectrometry where positive ions are speeded up by an electric field Acid rain - ANSWER Rain that has been acidified by pollutants such as sulfur dioxide Actual yield - ANSWER Mass of produc...

OCR A LEVEL CHEMISTRY A H432/01 PERIODIC TABLE,ELEMENTS AND PHYSICAL CHEMISTRY GENUINE 2024 EXAM 100% COMPLETE WITH ACTUAL ANSWERS CHECK THE LAST PAGE FOR ANSWERS. 1 Several students titrate 25.00 cm3 of the same solution of sodium hydroxide, NaOH(aq) with hydrochloric acid, HCl (aq). One student obtains a smaller titre than the other students. Which procedure explains the smaller titre? A The burette readings are taken from the top of the meniscus instead of the bottom of the meniscus. ...