# What is the binding energy of one mole of 234Th90 if the mass defect is 1.908 g/mol?

May 3, 2017

Well, $\text{energy"="mass} \times {c}^{2}$, where $c = \text{speed of light.}$

#### Explanation:

You know that masses are conserved in chemical reactions. However, this is a PHYSICAL not a chemical reaction, where nuclear processes occur with the release of a vast amount of energy. So try it out...........

We know that $1 \cdot g \equiv 1 \times {10}^{-} 3 \cdot k g$.

${N}_{A} = 6.022 \times {10}^{23} \cdot m o {l}^{-} 1$

$c = 3.00 \times {10}^{8} \cdot m \cdot {s}^{-} 1$.