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Ar and Mr and avagadro's constant

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A level Chemistry (Ben) (Atomic Structure) Flashcards on Ar and Mr and avagadro's constant, created by Jasbir Banwait on 17/10/2017.
Jasbir Banwait
Flashcards by Jasbir Banwait, updated more than 1 year ago
Jasbir Banwait
Created by Jasbir Banwait about 7 years ago
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Question Answer
What does Ar equal? average mass of one atom of an element ___________________________________________ 1/12 mass of one atom of ¹²C
What is avagadros number? The number of atoms present in 12g of carbon - 12.
What is a mole? The amount of substance that contains 6.022 x 10²³ particles.
What is the mass formula? Mass = moles x Ar
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