Question

30*10^25 atom of carbon

Answer 1

Answer:

30×10²⁵ atoms of C is equivalent to 498.17 moles and it weighs 6kg.

Explanation:

Given,

atoms of C = 30×10²⁵

moles of C atoms = number of atoms of C / Avogadro's Number

⇒                          =  30×10²⁵ / 6.022×10²³ = 498.17 moles

mass of C  = number of moles of C × atomic mass of C

⇒               = 498.17 × 12g = 5978.08g = 5.9781kg ≈ 6kg

Hence, the number of moles is 498.17moles and the mass of the given C atoms is 6kg.