Question

What are the steps needed to covert 22 grams of copper to atoms of copper

Answer 1

To convert 22 grams of copper to atoms, divide the mass by the atomic mass of copper to get the moles, and then multiply the moles by Avogadro's number to get the atoms, resulting in approximately 2.083 × 10^23 atoms of Cu.

Step-by-step explanation:

To convert 22 grams of copper to atoms of copper, you'll need to follow a two-step computation. Firstly, you must calculate the molar amount of copper using its atomic mass, and then apply Avogadro's number to convert the moles into atoms.

The atomic mass of copper is approximately 63.546 g/mol, and Avogadro's number (NA) is 6.022 × 10^23 atoms/mol. The calculation steps are as follows:

1. Divide the mass of copper by its atomic mass to get the number of moles: 22 g / 63.546 g/mol = 0.346 moles of Cu.
2. Multiply the moles of copper by Avogadro's number to find the number of atoms: 0.346 moles × 6.022 × 10^23 atoms/mol = approximately 2.083 × 10^23 atoms of Cu.

Answer 2

Step-by-step explanation:

Mole = No. Of atom/Avogadro const

Avogadro constant= 6.02×10^23

Mass of Cu =22g

Molar mass of Cu =63.5g/mol

Mole = mass/molar mass

Mole = 22/63.5

Mole = 0.346

No. Of atom=mloe ×avogadro conts

No. Of atom = 0.346 × 6.02×10^23

No. Of atom = 2.09 × 10^23atoms