what is avagadro's number?Calculate the number of atoms in 9.2g of Na ( Atomic mass of Na =a.m.u.
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The Avogadro constant is the proportionality factor that relates the number of constituent particles in a sample with the amount of substance in that sample. Its SI unit is the reciprocal mole, and it is defined exactly as NA = 6.02214076×10²³ mol⁻¹. It is named after the Italian scientist Amedeo Avogadro.
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