AQA A-Level Chemistry - Amount of Substance, Amount of Substance - AQA A-Level Chemistry Exam questions and answers Graded A+ latest update Relative Atomic Mass - The average mass of an atom of an element, compared to that of the mass of 1/12th of th
AQA A-Level Chemistry - Amount of Substance, Amount of Substance - AQA A-Level Chemistry Exam questions and answers Graded A+ latest update Relative Atomic Mass - The average mass of an atom of an element, compared to that of the mass of 1/12th of the average mass of an atom of carbon-12 Relative Molecular Mass - The average mass of one molecule compared to 1/12th of the mass of one atom of carbon-12 Avogadro Constant - The number of particles in one mole of an atom: 6.022 x 10^23 Solvent - A liqui
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