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1. Zinc nitrate reacts with potassium phosphate to form the insoluble compound, zinc phosphate. The reaction...

1. Zinc nitrate reacts with potassium phosphate to form the insoluble compound, zinc phosphate. The reaction proceeds according to the balanced equation below:

3 Zn(NO3)2 (aq) + 2 K3PO4 (aq) → Zn3(PO4)2 (s) + 6 KNO3 (aq)

A mass of 0.1420 g is desired as the yield of zinc phosphate. Calculate the moles of desired product.

2.


2 Al(NO3)3 (aq) + 3 K2Cr2O7 (aq) → Al2(Cr2O7)3 (s) + 6 KNO3 (aq)

Aluminum nitrate reacts with potassium dichromate to form the insoluble compound, aluminum dichromate. The reaction proceeds according to the balanced equation below:

Given the information in the table below about the theoretical yield of aluminum dichromate, complete the rest of the table.

Al(NO3)3 K2Cr2O7 Al2(Cr2O7)3 KNO3
Before Rxn 0.268 mol 0.401 mol 0 mol 0 mol
Change - mol - mol + 0.134 mol + mol
After Rxn mol 0 mol 0.134 mol 0.803 mol
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