The reaction required 75.5 g of carbon (C). How many mol of carbon is this?

12 grams

Explanation:

We need to use the equation : Moles=Mass/MrSubstitute in value : moles= 36/12 Therefore number of moles in 36 grams of carbon is 3. now try do devide 36 by 3 The value of the mole is equal to the number of atoms in exactly 12 grams of pure carbon-12. therefore its 12

chemists can use the electron cloud model to assign electrons to different atomic orbitals. atomic orbitals also explain the patterns in the periodic table

explanation: