In your explorations, your team discovered a particularly large underground cavern. The cavern has a steady water source seeping out of phosphate rock. This trickling water picks up a weak concentration of phosphate ions as it filters through the rock. There is plenty of soil in this caver, although extra plant nutrients will need to be added on a regular basis as crops are grown and harvested. This cavern may be an excellent site for growing vegetables and other plants. A source of light will be needed. To grow sufficient crops, you will need large amounts of calcium phosphate fertilizer. You can make this compound by combining the phosphate solution in the stream with calcium ions. In order to test the efficiency of this method, you tested it in the lab first by combining 50mL of a 0.10mol/L aqueous solution of sodium phosphate with sufficient calcium nitrate to obtain a precipitate. You filtered the precipitate, dried it, and determined its mass to be 0.62g.

1) Write a balanced chemical equation and net ionic equation for the reaction described above. (Make sure to include states)

2) Based on your results in the lab, determine the % yield.

3) Using the reactant amounts from your experiment, what mass of sodium nitrate would you expect to get from the reaction? How could you collect this product to test your calculations?

4) If 600L of 0.10mol/L solution of sodium phosphate were reacted with 10Kg of calcium nitrate, what would the limiting reactant be?