Anonymous asked in Science & MathematicsChemistry · 1 month ago

Nuclear chemistry help please!?

The answer is supposed to be 2.39*10^8 kJ but I’m not sure how to set this up. Please try to be detailed instead of giving one word hints. Thank you in advance.

Attachment image

1 Answer

  • david
    Lv 7
    1 month ago

    There are a couple of different ways to do this

    From the Bal. eq.   use MOLAR MASS and find the difference in mass on the product and reactant sides.  This will the the change in mass which changes into energy according to Einstein's equation ..  E = mc^2

     calculate the energy .. c is the speed of light

      ...  last  ...  this is for a mole  Li .. 6.016 g.  So  divide the Energy answer  by  6.016 to find the energy released by 1 g

    • Commenter avatarLog in to reply to the answers
Still have questions? Get answers by asking now.