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A mole of any substance contains _______(a) 6.022 x 10^26 particles(b) 6.022 x 10^22 particles(c) 6.022 x 10^23 particles(d) 3.022 x 10^22 particlesThis question was addressed to me at a job interview.My question is taken from Mole Concept and Molar Masses in section Chemistry Basic Concepts of Chemistry – Class 11

Answer»

Correct option is (c) 6.022 x 10^23 particles

The best I can explain: The answer is Avogadro’s NUMBER. One mole of any substance CONTAINS Avogadro’s number of particles. Avogadro number DENOTED by NA. Its value is 602213670000000000000000, also written as 6.022×10^23.



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