mass of paper towel and filter after drying: sults Write a balanced equation for

Question

mass of paper towel and filter after drying: sults Write a balanced equation for the reaction Find the amount of Aluminum actually reacted 0.57g 1 mol 2Al 3CuC12 >2AIC133Cu 0.021 1 mol 26.9815g Find the amount of Copper produced. Using the grams of aluminum found in #2, find out how much opper you should ve produced (theoretical amount) Using the amount of copper produced; find the moles of copper () chloride you ed. Find the molarity of the copper (II) chloride used Find the % yield of copper produced.

Explanation / Answer

2 Al + 3 CuCl2 -------> 2 AlCl3 + 3 Cu

mass of Al = 0.57 g

number of moles of Al = 0.57g * 1mol/26.9815 g = 0.0211 moles

according to equation balanced above,

2 moles of Al produces 3 moles of Cu

0.0211 moles of Al produces 3/2*0.0211 moles of Cu

                           = 0.03165 moles

mass of Cu produced = 0.03615mole * 63.55 g/mol = 2.2973 g

3 moles of Cu requires 3 moles of CuCl2

0.03615 moles of Cu requires 3/3*0.03615 moles of CUCl2

                            = 0.03615 moles of CuCl2

molarity of CuCl2 solution = number of moles/volume of solution

molarity of CuCl2 = 0.03615moles/1L = 0.03615 M

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