What is the energy equivalent of this mass in kilojoules

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Problem- The mass of a proton is 1.00728 amu and the mass of a neutron is 1.00867 amu. What is the mass defect (in amu) of a ^60/27 Co nucleus whose nuclear mass is 59.9338 amu? What is the mass defect in kilograms? What is the energy equivalent of this mass in kilojoules?

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