Question

the number of atoms in 0.004 g of magnesium will be

Answer 1

Weight of 1 mole of Mg = 24 g
Weight of 1/6 mole of Mg = 4 g
Weight of 1/6000 mole of Mg = 0.004 g
1 mole = 6.022 × 10²³ atoms
1/6000 moles = 6.022 × 10²³ × 1/6000
= 1.00366 × 10^20 atoms

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Answer 2

Answer:

answer is 10^20

Explanation:

moles =gm/mm*avogadro constant =number of atoms

0.004/24*6.022*10^23 = number of atoms

4/24*6*10^20 = number of atoms

number of atoms =10^20