Question: How much energy (in j) is produced when 0.082 g of matter is converted to energy?

Mass=0.082g,

The unit of mass is in kg , therefore 0.082/1000 =8.2* 10^-6

According to einstein mass-energy relation, the energy can be calculated as follows           e=mc²

E= 8.2* 10^-6* (3*10⁸)=24.6 *10^8-6= 2.46 10²j