Amount Of Substance

Description

For the amount of substance part of AS chemistry salters, Elements of Life.
LotzaLemmon
Flashcards by LotzaLemmon, updated more than 1 year ago
LotzaLemmon
Created by LotzaLemmon over 10 years ago
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Resource summary

Question Answer
What is Avogadro's number? 6.02x10^23
What is relative atomic mass? (Ar) The number of times heavier one atom of an element is, than one 12th of carbon-12.
What is relative formula mass? (Mr) The sum of the atomic mass of each of the elements in the compound. (This can also be called relative molecular mass)
What is Empirical Formula? The simplest ratio of atoms in a compound.
What is Molecular Formula? The actual number of atoms in a compound. (This can be the same as or a multiple of the empirical formula)
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