There is thermal energy, but temperature is also a measure of the average kinetic energy, so either of those should be acceptable answers for the question.
        
             
        
        
        
   n = 1.5atm (15L) / .0821 (280k) = .98 mol NaCl
   NaCl = 22.99g Na + 35.45g Cl = 58.44g NaCl
   58.44g NaCl x .98 mol NaCl = 57.27g NaCl
Explanation:
hope you get it right :)
 
        
             
        
        
        
Answer:
There are 7.5 moles of salt 
Explanation:
5.0M means that in every liter of solution, there are 5 moles of salt. So, 1.5L of solution times 5 moles per liter equals 7.5 moles
 
        
             
        
        
        
Although he did not do the experiment himself, he had come up with the idea of what to do and how to do it. I think that only Rutherford receiving credit is okay as the assistants did not do anything to contribute to the actual idea of the experiment. 
For example, we credit the invention of the iPhone to Steve Jobs, the engineers of Apple, the designers, etc. - those with actual contributions to the invention and the ideas and not the Chinese factory workers - those who construct the iPhone itself.