Calculate the final molarity of iodide anion in the solution. potassium carbonate

Find moles, using molar mass: 
2.71 g ZnCl2 @ 136.32 g ZnCl2 / mole = 0.01988 moles Zn+2 

find moles 
0.350.L @ 0.0560 moles / Litre = 0.0196 moles (CO3)-2 

by the equation 
Zn+2 & CO3)-2 --> ZnCO3 (s) 
0.0196 moles (CO3)-2 reacts with an equal 0.0196 moles Zn+2 , 
0.01988 moles Zn+2 - 0.0196 moles Zn+2 reacted = 0.00028 moles Zn+2 remain 

find molarity remaining 
0.00028 moles Zn+2 / 0.350 litres = 0.000799 Molar 
your answer, to 1 sig fig is 
0.0008 Molar Zn+2 
aka 
0.8 milliMolar Zn+2 

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?