[White Rabbit]

Ok, I never finished school when I was a kid so I never did much math and I did no Physics what so ever. So could someone explain something for me.

If I take Hydrogen with the atomic weight 1.00794 and plug it into the equation E=mc^2 to find out how much energy would be released if it was converted to pure energy I get the number 8.39875517873682.......... thenumbers keep going on and on. So what is this unit of enegy called that is produced in this equation?

here is my calculation.
1.0079*299 792 458^2=8.39875517873682..........

Have I got the equatioin correct?

thanks
Sandy