Question

calculate mass of 0.1 mole of iron

Answer 1

Molar mass of Fe=56 u
So, 0.1 moles of Fe= 0.1 x 56
= 5.6 u

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Answer 2

The mass of 0.1 mole of iron is, 5.6 u.

What is the mass of 0.1 mole?

Mass of 0.1 mole of methane = 16 × 0.1g = 1.6g.

What is the mass of 1.0 mole of Fe?

• Thus, since the atomic mass of iron is 55.847 amu, one mole of iron atoms would weigh 55.847 grams.

How do I calculate moles?

• First you must calculate the number of moles in this solution, by rearranging the equation. No. Moles (mol) = Molarity (M) x Volume (L) = 0.5 x 2. = 1 mol.
• For NaCl, the molar mass is 58.44 g/mol. Now we can use the rearranged equation. Mass (g) = No. Moles (mol) x Molar Mass (g/mol) = 1 x 58.44. = 58.44 g.

According to the question:

Molar mass of Fe = 56 u.

So, 0.1 moles of Fe= 0.1 x 56.

= 5.6 u.

Hence, mass of 0.1 mole of iron is, 5.6 u.

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