Question

calculate the number of moles of magnesium in a magnesium ribbon weighing 12 gram.Molar atomic mass of magnesium is 24g/mol​

Answer 1

Answer:

1/2 mole

Explanation:

since, one mole of magnesium weighs 24 gram

therefore, the mole in 12 gram of magnesium is 12/24=1/2 mole

Answer 2

Answer:

0.5 moles

Explanation:

Pre - Requisite Knowledge = No. of moles (n) = Given Mass (M) / Molar Mass (m)

SOLUTION:

Given Mass of Magnesium ribbon (M) = 12 g

Molar Mass of Magnesium = 24 g / mol

No. of Moles (n) = ?

n = M / m

⇒ n =  12 / 24

⇒ n = 0.5 moles

Therefore, Number of moles of Magnesium in a Magnesium Ribbon weighing 12 gram = 0.5 moles

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