a) Based on the amounts of copper metal(1.017g) and nitric acid(5.2mL) you used in the reaction, calculate the number of moles of HNO3 there are in excess. Concentrated nitric acid has a concentration of 15.8 M.
b) Using the moles of HNO3 you calculated and the moles of Cu(NO3)2 produced from the first reaction, calculate the total mass of sodium carbonate needed for the second and the third reactions. Did youu add enough sodium carbonate in the experiment?