I know there are multiple questions but the questions are related to each other so I must post them together. Please ans

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I Know There Are Multiple Questions But The Questions Are Related To Each Other So I Must Post Them Together Please Ans 1 (51.09 KiB) Viewed 14 times

I know there are multiple questions but the questions are related to each other so I must post them together. Please answer only if you will answer all. Thank you for your time. Molecular Weights: -Cu 63.546g/mol A rock was analyzed for its copper content. Since copper goes through redox reactions, an iodometric totration was utilized. An unknown 1.5098 g sample was acidified using 3M sulfuric acid to dissolve the Cu compounds and diluted w/ 30mL distilled water. Kl was then added resulting in l2 and Cul precipitate from Cu²+ (first reaction). I₂ then reacted with excess Ki resulting in 13 (second reaction) w/c was titrated with Na2S203 (third reaction). 17.600mL of the titrant was required in the solution to reach the starch end point. www a. Give the balanced chemical equation for rxn 1-3. Give the mole ratio between Cu²+ and S₂03². b.