Question

calculate the number of moles of iron in a sample containing 3.01 x 10²² atoms

Answer 1

Explanation:

The mass of given number of atoms of iron is 0.93 g

Explanation:

We are given:

Number of atoms of iron =

According to mole concept:

1 mole of an element or compound contains  number of particles.

Molar mass of iron = 56 g/mol

As, number of atoms of iron has a mass of 56 grams

Then, number of atoms of iron will have a mass

Answer 2

Explanation:

Hey mate here is your answer

GIVEN THAT

number of atoms =

$3.01 \times {10}^{22}$

We know that

number of atoms = number of moles × Avagadros number

3.01 × 10 ^22 = N × 6.023 × 10^23

$3.01 \times {10}^{22} \div 6.02 \times \: {10}^{23} \: \: \: \: \: \: \: \: \: n$

Number of moles = 0.05