Question

if one mole of carbon atoms weighs 12 grams what is the mass (in grams) a one atom of carbon​

Answer 1

Answer:

12 gram only

Explanation:

Answer 2

Answer:-

1.99×10⁻²³ g

Explanation:-

One mole of carbon weighs 12g, so molar mass of carbon is 12g/mol.

• Avogadro Number = 6.022×10²³

Firstly, let's calculate the number of mole.

∵ No of atoms :-

= No of moles × Avogadro Number

∴ No of moles :-

= No of atoms/Avogadro Number

= 1/6.022×10²³ mole

[ We will not convert the number of moles into decimal for simplification of calculations in the next step]

Now, we know that:-

=> Mass = No of moles × Molar mass

=> Mass = 1/6.022×10²³ × 12

=> Mass = 12/6.022×10²³

=> Mass = 1.99/10²³

=> Mass = 1.99×10⁻²³ g

Thus, mass of one atom of carbon is 1.99×10⁻²³g .