1. The problem statement, all variables and given/known data Here's the measurements from my expirement. (reaction 1) 0.548 g Cu (s) 4.0 mL HNO3 100 mL DI water (reaction 2) 30 mL 3.0 M NAOH (reaction 3) nothing was added. (reaction 4) 200 mL of DI water 15 mL of 6.0 M HCl (reaction 5) 2.095 g Zn 10 mL 6M HCl 5 mL methanol 5 mL DI water 40.767 g mass of evaporating dish 41.238 g mass of evaporating dish with solid 2. Relevant equations Here are the reactions: reaction 1: theoretical mass of copper (II) nitrate formed Cu+4HNO3-->Cu(NO3)2+2NO2+2H2O reactoin 2: theoretical mass of copper (II) hydroxide formed Cu(NO3)2+2NaOH-->Cu(OH)2+2NaNO3 reaction 3: theoretical mass of copper (II) oxide formed Cu(OH)2-->CuO+H2O reaction 4: theoretical mass of copper (II) sulfate formed CuO+H2SO4-->CuSO4+H2O reaction 5: theoretical mass of copper formed Zn+CuSO4-->ZnSO4+Cu 3. The attempt at a solution I have no clue where to even start. my teacher said some of the measurements from the lab were needed in the calculations, but i dont know which measurements to use for each reaction.