1.19 Moles & mass
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4 Terms
1
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What equation links mass, moles and relative atomic mass? (higher only)
Mass (g) = Moles x Relative atomic mass (Mr)
2
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What is the Avogadro constant? (higher only)
The number of atoms, molecules or ions in one mole of a given substance. The value of the constant is 6.02 x 1023.
3
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What formula links the Avogadro constant, moles and number of particles? (higher only)
Number of particles = Avogadro constant x Moles
4
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How many atoms are in 3 moles of copper? (higher only)
Number of atoms = Avogadro’s constant x Moles = 6.02 x 1023 x 3 = 1.81 x 1024
Note 
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