Question

Calculate the number of atoms in 0.4g of copper(Cu=64)
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Answer 1

In chemistry, the mole is a fundamental unit in the SI system and is used to measure the amount of substance. When a certain quantity of particles is to be described, mole is a grouping unit analogous to groupings such as pair or dozen, where all these terms represent a specific number of objects.One mole is an amount of substance containing Avogadro's number of particles. Avogadro's number is equal to 6.02214199 × 10

Answer 2

Answer:

64g of Cu have 6.023 × 10²³ atoms(N)

so, 0.4g of Cu will have 0.037 ×10²³(approx)