Question

1. 2 moles of Zinc reacts with a cupric choloride solution containing 6.023x10
formula units of Cuci, Calculate the moles of copper obtained ​

Answer 1

Answer:

Equation for the reaction=

Zn+CuCl2 =====>ZnCl2 + Cu

This equation is balanced

accourding to the balanced equation

1 mol of Zn react with 1 mol of CuCl2 to give 1 mol of ZnCl2 and 1 mol of CO2.

given moles of zinc = 2 mol

moles of cucl2 = 6.023X1O/6.022X10^23

= 10^-22 mol

but

1 mol of Zn react with 1 mol of CuCl 2

so cucl2 is limiting reagent

so, we use CuCl 2 for calculation

Now,

1 mol of CuCl 2 gives = 1 mol Cu

10^-22 mol " " " " " = 10^-22 mol

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