Question

calculate the mass of 12.0 into 10 power 14 atom of Hydrogen

Answer 1

No. of atoms =mole*avogadro number , Mole = no.of atoms Avogadro no.= 12*10146.022*1023=1.993*10-9mole, mole=given massmolecular mass given mass=mole*molar mass=1.993*10-9*1.008=2.009*10-9