Post-laboratory Assignment - Lab Report Example

Post-laboratory Assignment Step Copper (II) nitrate from copper Molecular Cu(s) + 2HNO3 (aq)= Cu (NO3)2(aq) + H2 (g) Ionic Cu(s) + 2H+ (aq) = Cu+ (aq) + H2 (g) Step 2: Copper (II) hydroxide from copper (II) nitrate Molecular Cu (NO3)2(aq) + 2 NaOH (aq) = Cu (OH) 2(s) + 2NaNO3 (aq) Ionic Cu²⁺ (aq) + 2OH⁻ (aq) = Cu (OH) ₂(s) Step 3: Copper (II) oxide from copper (II) hydroxide Molecular Cu (OH) 2 (s) = CuO (s) + H2O (l) Ionic Cu (OH) 2 (s) = CuO (s) + H2O (l) Step 4: Copper (II) sulfate from copper (II) oxide Molecular CuO (s) + H2SO4 (aq) = CuSO4 (aq) + H2O (l) Ionic CuO(s) + 2H+ = Cu2+ + H2O (l) Step 5: Copper recovery from copper (II) sulfate Molecular Zn(s) + CuSO4 (aq) = ZnSO4 (aq) + Cu(s) Ionic Zn(s) + Cu2+(aq) = Zn2+(aq) + Cu (s) Side Reactions Molecular HNO3 (aq) + NaOH(aq) = NaNO3(aq) + H2O(l) Ionic H+ (aq) + OH-(aq) = H2O (l) 2.

It could have been due to lack of keenness while conduct the experiment thus erratic measurements besides improper decanting when doing filtration. 3.