Question

Mass of an element having 2*10^23 atoms (atomic mass 32)

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Answer 1

No. of atoms =  2 x 10^23

no.of moles x avogadro number = no.of atoms

therefore no. of moles = no . of atoms / avogadro number

= 2 x 10^23 / 6.022 x 10^23 = 1 / 3.011

no . of moles = given mass / molar mass

mass = no . of moles * molar mass = 32 / 3.011 = 10.627 g

Answer 2

Answer:

10.624

Explanation:

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