Question 190790

 1)  What is the solubility of PbI2 in g/l, if the solubility product is 7.9×10-9

2) Cu(s)/ Cu+2 (0.02M) //Zn2+ (0.02M)/Zn(s); the standard reduction potential for Cu and Zn is 0.34 and -0.76 respectively. Calculate the standard cell potential, change in free energy and cell potential

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