Answer this right with the correct method and I’ll give you brainliest Calculate the mass, in grams, of a single atom of this isotope of sodium. 23 Na ( The Avogadro constant , L , is 6.023*10^ 23 mol ^ -1 )

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.