Part B: Qualitative Analysis – Anion Pre-Lab Report

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Write and balance the Ion Exchange Reactions for the following steps in Part B: Use you Solubility Chart to predict the precipitates.

Step #16:

Calcium Nitrate (aq) + Sodium Biphosphate (aq) →

Calcium Nitrate (aq) + Sodium Carbonate (aq) →

Step #19:

Calcium Carbonate (s) + Hydrochloric Acid (aq) →

Step#20

Calcium Biphospahte (aq) + Ammonium Molybdate (aq) →

Actual Equation is a REDOX. The acid converts biphosphate ion to dihydrogen phosphate which undergoes the following change:

H₂PO₄^1- + 12 MoO₄^{2- +} 22 H₃O¹⁺ + 3 NH₄ ¹⁺ <==> (NH₄)₃PO₄∙12MoO₄ + 34 H₂O

Step#21

Barium Nitrate (aq) + Sodium Sulfate (aq) →

Step#23

Sodium Chloride (aq) + Silver Nitrate (aq) →

Sodium Iodide (aq) + Silver Nitrate (aq) →