Question

What mass of magnesium (atomic mass = 24) will have the same number of atoms as present in 9
gm aluminum (atomic mass = 27)?
TA) 8 gm
B) 9 g
C 12 gm d)72gm​

Answer 1

Answer:

       8g

Explanation:

No of moles = given mass / molar mass

n₁ = 9 / 27

n₁ = 1 / 3 mol

n₁ = n₂

n₂ = given mass / 24 = 1 / 3

given mass = 24 / 3

mass of magnesium = 8g

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