Question

A kilogram of iron contains how many moles of iron

Answer 1

Answer: Moles of iron for the given amount is 17.90 moles.

Explanation:

We are given 1 kg of iron and we need to find the moles of it. To calculate the moles, we use the following equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Mass of iron given = 1kg = 1000 grams     (Conversion Factor: 1 kg = 1000g)

Molar mass of iron = 55.85g/mol

Putting values in above equation, we get:

$\text{Moles of iron}=\frac{1000g}{55.85g/mol}\\\\\text{Moles of iron}=17.90mol$

Hence, moles of iron for the given amount is 17.90 moles.

Answer 2

A kilogram of iron contains 17.90 moles of iron.

What is moles?

A standard scientific unit for measuring huge amounts of very small substances like atoms, molecules, or other designated particles.

$Number\;of mole\; = \dfrac{Mass}{molar\;mass}$

Given, mass of iron is 1 kg = 1000 g

Molar mass of iron is 55.85g/mol

Now, by the formula

$Number\;of mole\; = \dfrac{1000}{55.85\;g/mol} = 17.90 \;mol.$

Thus, the moles of iron in one kg of iron is 17.90 mol.

Learn more about moles, here:

https://brainly.com/question/15209553