Question

Calculate number of molecules in 10 gram carbon atom​

Answer 1

Answer:

Molecular formula carbon dioxide: CO₂

Atomic mass of C = 12 u and Atomic mass of oxygen = 16 u

Molar mass of CO₂ = 12 + 2 x 16 = 44 g/mol

Therefore, 44 g CO₂ contains 6.022x10 ²³ molecules.

So, 10 g CO₂ contains (10/44) x 6.022 x10²³ molecules

= 1.369 x 10 ²³ molecules.