Nuclear Chemistry

 44) m_p = 1.00728 u          m_Ne = 20.98846 u          c = 3.00 x 10⁸ m/s

       m_n = 1.00866 u          1 g = 6.02 x 10²³ u

             
       ²¹₁₀Ne + E 10¹₁p + 11¹₀n

       Δm = (10 x 1.00728 u + 11 x 1.00866 u - 20.98846 u) x 1 g/(6.02 x 10²³ u ) x 1 kg/10³ g = 2.98 x 10^-28 kg/Ne-21 nucleus

       ΔE = Δmc² = 2.98 x 10^-28 kg x (3.00 x 10⁸ m/s)² = 2.69 x 10^-11 J/Ne-21 nucleus

       ΔE = 2.69 x 10^-11 J/Ne-21 nucleus x 6.02 x 10²³ Ne-21 nuclei/1 mol Ne-21 nuclei = 1.62 x 10¹³ J/mol Ne-21 nuclei