Help with the last 3 questions?? Am I over thinking them?? Mole copper(II) ions

Question

Help with the last 3 questions?? Am I over thinking them??
Mole copper(II) ions initially in solution. Balanced Net Ionic equation for the reaction for copper (II) chloride with aluminum. Mole of copper metal (Cu0) expected to be formed. Experimental Data (3 pts. for blanks in experimental section) Mass of copper(II) chloride CuCl Mass of aluminum 14 Mass of aluminum remaining after reaction 1:-321 -0.481-g- Mass of aluminum that reacted Mass of filter paper and watchglass Mass of filter paper, watchglass, and copper Mass of copper recovered 05 262 1.4229 Show calculations with each blank except for the molar mass of Cu (Unless otherwise noted, 6 pts. for blanks including calculations in this section) Copper Molar mass of CuCl mol a-3.463 g/mol ,2 Mole of CuClz dissolved 2: Balanced equation for the dissociation of CacCk in water (4pos) Mole of copper(II) ions (Cu") initially in solution Balanced net ionic equation for the reaction of copper(II) chloride with aluminum (4pts) Mole of copper metal (Cu') expected to be formed 57

Explanation / Answer

Moles of copper(II) ions initially in solution = moles of CuCl2 initially in solution

1 mol of CuCl2 contains = 1 mol of Cu

Moles of copper(II) ions initially in solution = 0.02327 mol

Balanced chemical reaction

3 CuCl2(aq) + 2 Al(s) = 3 Cu (s) + 2 AlCl3(aq)

Molecular ionic reaction

3 Cu2+(aq) + 6Cl-(aq) + 2Al(s) = 3Cu(s) + 2Al3+(aq) + 6Cl-(aq)

Net ionic equation

3 Cu2+(aq) + 2Al(s) = 3Cu(s) + 2Al3+(aq)

Mole of copper metal expected to be formed

From the stoichiometry of the reaction

1 mol of CuCl2 produces = 1 mol of Cu

0.02327 mol of CuCl2 produces =0.02327 mol of Cu

Mole of copper metal expected to be formed = 0.02327 mol

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